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Meridian International School of Business Marginal Costing & Differential Costing2013
SYLLABUS
Unit II
Marginal Costing
Marginal Costing versus Absorption Costing,
Cost-Volume-Profit Analysis and P/V Ratio Analysis and their implications,
Concept and uses of Contribution & Breakeven Point and their analysis for various types of decision-making
like single product pricing, multi product pricing, replacement, sales etc.
Differential Costing and Incremental Costing
Concept,
Uses and applications,
Methods of calculation of these costs and their role in management decision making like sales, replacement,
buying etc.
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Meridian International School of Business Marginal Costing & Differential Costing2013
CONTENT
1.1 MARGINAL COSTING AND COST PROFIT VOLUME ANALYSIS
1.2 DIFFERENTIAL COSTING
1.3 ADVANTAGES OF MARGINAL COSTING
1.4 LIMITATIONS OF MARGINAL COSTING
1.5 COST VOLUME PROFIT ANALYSIS
1.6 MARGINAL COST EQUATION
1.7 CONTRIBUTION
1.8 PROFIT VOLUME RATIO (P/V Ratio)
1.9 BREAK-EVEN POINT
1.10 ASSUMPTIONS UNDERLYING CVP ANALYSIS/BREAK-EVEN CHARTS
1.11 ADVANTAGES OF BREAK-EVEN CHARTS
1.12 LIMITATIONS OF BREAK-EVEN CHARTS
1.13 PROFIT GRAPH
1.14 MARGIN OF SAFETY
1.15 ANGLE OF INCIDENCE
1.16 DIFFERENTIAL COSTS AND INCREMENTAL COSTS
1.17 AREAS OF DECISION MAKING
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Meridian International School of Business Marginal Costing & Differential Costing2013
1.1Marginal Costing and Cost Volume Profit Analysis
Marginal Cost: The term Marginal Cost refers to the amount at any given volume of output by which the
aggregate costs are charged if the volume of output is changed by one unit. Accordingly, it means that the
added or additional cost of an extra unit of output.
Marginal cost may also be defined as the "cost of producing one additional unit of product." Thus, the concept
marginal cost indicates wherever there is a change in the volume of output, certainly there will be some change
in the total cost. It is concerned with the changes in variable costs. Fixed cost is treated as a period cost and is
transferred to Profit and Loss Account.
Marginal Costing: Marginal Costing may be defined as "the ascertainment by differentiating between fixed
cost and variable cost, of marginal cost and of the effect on profit of changes in volume or type of output."
With marginal costing procedure costs are separated into fixed and variable cost.
According to J. Batty, Marginal costing is "a technique of cost accounting pays special attention to the
behaviour of costs with changes in the volume of output." This definition lays emphasis on the ascertainment
of marginal costs and also the effect of changes in volume or type of output on the company's profit.
FEATURES OF MARGINAL COSTING
(1) All elements of costs are classified into fixed and variable costs.
(2) Marginal costing is a technique of cost control and decision making.
(3) Variable costs are charged as the cost of production.
(4) Valuation of stock of work in progress and finished goods is done on the basis of variable costs.
(5) Profit is calculated by deducting the fixed cost from the contribution, i.e., excess of selling price over
marginal cost of sales.
(6) Profitability of various levels of activity is detennined by cost volume profit analysis.
Absorption Costing
Absorption costing is also termed as Full Costing or Total Costing or Conventional Costing. It is a technique of
cost ascertainment. Under this method both fixed and variable costs are charged to product or process or
operation. Accordingly, the cost of the product is determined after considering both fixed and variable costs.
Absorption Costing Vs Marginal Costing: The following are the important differences between
Absorption Costing and Marginal Costing:
(1) Under Absorption Costing all fixed and variable costs are recovered from production while under Marginal
Costing only variable costs are charged to production.
(2) Under Absorption Costing valuation of stock of work in progress and finished goods is done on the basis of
total costs of both fixed cost and variable cost. While in Marginal Costing valuation of stock of work in
progress and finished goods at total variable cost only.
(3) Absorption Costing focuses its attention on long-term decision making while under Marginal Costing
guidance for short-term decision making.
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Meridian International School of Business Marginal Costing & Differential Costing2013
(4) Absorption Costing lays emphasis on production, operation or process while Marginal Costing focuses on
selling and pricing aspects.
1.2Differential Costing
Differential Costing is also termed as Relevant Costing or Incremental Analysis. Differential Costing is a
technique useful for cost control and decision making.
According to ICMA London differential costing "is a technique based on preparation of adhoc information
in which only cost and income differences between two alternatives / courses of actions are taken into
consideration."
Marginal Costing and Differential Costing: The following are the differences between Marginal Costing and
Differential Costing:
(1) Differential Costing can be made in the case of both Absorption Costing as well as Marginal Costing
(2) While Marginal Costing excludes the entire fixed cost, some of the fixed costs may be taken into account as
being relevant for the purpose of Differential Cost Analysis.
(3) Marginal Costing may be embodied in the accounting system whereas Differential Cost are worked
separately as analysis statements.
(4) In Marginal costing, margin of contribution and contribution ratios are the main yardstick for the
performance evaluation and for decision making. In Differential Cost Analysis. differential costs are compared
with the incremental or decremental revenues as the case may be.
1.3Advantages of Marginal Costing (or)
Important Decision Making Areas of Marginal Costing
The following are the important decision making areas where marginal costing technique is used :
(I) Pricing decisions in special circumstances :
(a) Pricing in periods of recession;
(b) Use of differential selling prices
(2) Acceptance of offer and submission of tenders.
(3) Make or buy decisions.
(4) Shutdown or continue decisions or alternative use of production facilities.
(5) Retain or replace a machine.
(6) Decisions as to whether to sell in the export market or in the home market.
(7) Change Vs status quo.
(8) Whether to expand or contract.
(9) Product mix decisions like for example :
(a) Selection of optimal product mix;
(b) Product substitution;
(c) Product discontinuance.
(10) Break-Even Analysis.
1.4Limitations of Marginal Costing
(1) It may be very difficult to segregation of all costs into fixed and variable costs.
(2) Marginal Costing technique cannot be suitable for all type of industries. For example, it is difficult to apply
in ship-building, contract industries etc.
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Meridian International School of Business Marginal Costing & Differential Costing2013
(3) The elimination of fixed overheads leads to difficulty in determination of selling price.
(4) It assumes that the fixed costs are controllable, but in the long run all costs are variable.
(5) Marginal Costing does not provide any standard for the evaluation of performance which is provided by
standard costing and budgetary control.
(6) With the development of advanced technology fixed expenses are proportionally increased. Therefore, the
exclusion of fixed cost is less effective.
(7) Under marginal costing elimination of fixed costs results in the under valuation of stock of work in
progress and finished goods. It will reflect in true profit.
(8) Marginal Costing focuses its attention on sales aspect. Accordingly, contribution and profits are determined
on the basis of sales volume. It does nnt con:::ider other functional aspects.
(9) Under Marginal Costing semi variable and semi fixed costs cannot be segregated accurately.
1.5COST VOLUME PROFIT ANALYSIS
Cost Volume Profit Analysis (C V P) is a systematic method of examining the relationship between changes in
the volume of output and changes in total sales revenue, expenses (costs) and net profit. In other words. it is
the analysis of the relationship existing amongst costs, sales revenues, output and the resultant profit.
To know the cost, volume and profit relationship, a study of the following is essential :
(1) Marginal Cost Formula
(2) Break-Even Analysis
(3) Profit Volume Ratio (or) PN Ratio
(4) Profit Graph
(5) Key Factors and
(6) Sales Mix
Objectives of Cost Volume Profit Analysis
The following are the important objectives of cost volume profit analysis:
(1) Cost volume is a powerful tool for decision making.
(2) It makes use of the principles of Marginal Costing.
(3) It enables the management to establish what will happen to the financial results if a specified level of
activity or volume fluctuates.
(4) It helps in the determination of break-even point and the level of output required to earn a desired profit.
(5) The PN ratio serves as a measure of efficiency of each product, factory, sales area etc. and thus helps the
management to choose a most profitable line of business.
(6) It helps us to forecast the level of sales required to maintain a given amount of profit at different levels of
prices.
1.6Marginal Cost Equation
The Following are the main important equations of Marginal Cost :
Sales = Variable Cost + Fixed Expenses Profit I Loss
(or)
Sales - Variable Cost = Fixed Cost Profit or Loss
(or)
Sales - Variable Cost = Contribution
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Meridian International School of Business Marginal Costing & Differential Costing2013
Contribution = Fixed Cost + Profit
The above equation brings the fact that in order to earn profit the contribution must be more than fixed
expenses. To avoid any loss, the contribution must be equal to fixed cost.
1.7Contribution
The term Contribution refers to the difference between Sales and Marginal Cost of Sales. It also termed as
"Gross Margin." Contribution enables to meet fixed costs and profit. Thus, contribution will first covered fixed
cost and then the balance amount is added to Net profit. Contribution can be represented as:
Contribution = Sales - Marginal Cost
Contribution = Sales - Variable Cost
Contribution = Fixed Expenses + Profit
Contribution - Fixed Expenses = Profit
Sales - Variable Cost = Fixed Cost + Profit
OR
C=S-V.C
C=F.C+P
S-V.C=F.C+P
C-F.C=P
Example
Variable Cost = Rs 50,000
Fixed Cost = Rs 20,000
Selling Price = Rs 80,000
Contribution = Selling Price Variable Cost = Rs 80,000 Rs 50,000 = Rs 30,000
Profit = Contribution Fixed Cost = Rs 30,000 Rs 20,000 = Rs 10,000
Hence, contribution exceeds fixed cost and, therefore, the profit is of the magnitude ofRs 10,000. Suppose the
fixed cost is Rs. 40,000 then the position shall be
Contribution Fixed cost = Profit = Rs 30,000 Rs 40,000 = () Rs 10,000
The amount of Rs 10,000 represents the extent of loss since the fixed costs are more than the contribution. At
the level of fixed cost of Rs 30,000, there shall be no profit and no loss. The concept of the break-even analysis
emerges out of this theory.
1.8Profit/Volume Ratio (P/V Ratio)
This term is important for studying the profitability of operations of a business, Profit volume ratio establishes
a relationship between the contribution and the sale value. The ratio can be shown in the form of a percentage
also. The formula can be expressed thus:
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Meridian International School of Business Marginal Costing & Differential Costing2013
P/V Ratio= Contribution = Sales Variable Cost Sales Sales
or C/S = S V or Variable Costs 1-
S Sales
This ratio can also be called Contribution/Sales ratio. This ratio can also be known by comparing the change in contribution to change in sales or change in profit due to change in sales. Any increase in contribution would
mean increase in profit only because fixed costs are assumed to be constant at all levels of production. Thus,
P/V Ratio = Change in Contribution or Change in Profit
Change in Sales Change in Sales
This ratio would remain constant at different levels of production since variable costs as a proportion to sales
remain constant at various levels.
Example
Sales Rs 2,00,000
Variable Costs 1,20,000
Fixed Costs 40,000
Rs 2,00,000 - Rs 1, 20,000
P/V Ratio = = 0.4 or 40%
Rs 2,00,000
The ratio is useful for the determination of the desired level of output or profit and for the calculation of
variable costs for any volume of sales. The variable cost can be expressed as under:
VC = S (1 P/V Ratio) In the above example if we know the P/V Ratio and sales beforehand, the variable cost can be computed as
follows:
Variable costs = 1 .04 =.06, i.e., 60% of sales = Rs 1,20,000 (60% of Rs 2,00,000)
Alternatively, by the formula
Since
S - V
P/V Ratio= ,
S
.. S V = S P/V ratio or V = S S P/V Ratio or = S (1 P/V Ratio)
The following are the special features of P/V Ratio:
(i) It helps the management in ascertaining the total amount of contribution for a given volume of sales.
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Meridian International School of Business Marginal Costing & Differential Costing2013
(ii) It remains constant so long the selling price and the variable cost per unit remain constant or so long they
fluctuate in the same proportion.
(iii) It remains unaffected by any change in the level of activity. In other words, PV ratio for a product will
remain the same whether the volume of activity is 1,000 units or 10,000 units.
(iv) The ratio also remains unaffected by any variation in the fixed cost since the latter are not at all considered
while calculating the PV ratio.
In case of a multi-product organisation, PV ratio is of vital importance for the management to find out which
product is more profitable. Management tries to increase the value of this ratio by reducing the variable costs
or by increasing the selling price.
1.9Break-even Point
The point which breaks the total cost and the selling price evenly to show the level of output or sales at which
there shall be neither profit nor loss, is regarded as break-even point.At this point, the income of the business
exactly equals its expenditure. If production is enhanced beyond this level, profit shall accrue to the business,
and if it is decreased from this level, loss shall be suffered by the business.
It will be proper here to understand different concepts regarding marginal cost and break-even point before
proceeding further. This has been explained below:
Marginal Cost = Total Variable Cost
or = Total Cost Fixed Cost or = Direct Material + Direct Labour + Direct Expenses (Variable)
+ Variable Overheads
Contribution = Selling Price Variable Cost Profit = Contribution Fixed Cost
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Meridian International School of Business Marginal Costing & Differential Costing2013
Fixed Cost = Contribution Profit Contribution = Fixed Cost + Profit
Profit/Volume Ratio or
Contribution per unit
(P/V Ratio) =
Selling price per unit
Or Total Contribution
Total Sales
In case P/V ratio is to be expressed as a percentage of sales, the figure derived from the formulae as given
above should be multiplied by 100.
Fixed Cost
Break-even Point (of output) =
Contribution per unit
Fixed Cost Selling Price per unit
Break-even Point (of sales) =
Contribution per unit
Fixed Cost Total
Or = x Sales
Total Contribution
Fixed Cost Fixed Cost
Or = =
Variable cost per unit P/V Ratio
1-
Selling price per unit
At break-even point the desired profit is zero. In case the volume of output or sales is to be computed for a
desired profit, the amount of desired profit should be added to Fixed cost in the formulae given above. For example:
Fixed Cost + Desired Profit
Units for a desired profit=
Contribution per unit
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Meridian International School of Business Marginal Costing & Differential Costing2013
Fixed Cost + Desired Profit
Sales for a desired profit =
P/V Ratio
Example- A factory manufacturing sewing machines has the capacity to produce 500 machines per annum.
The marginal (variable) cost of each machine is Rs 200 and each machine is sold for Rs 250. Fixed overheads
are Rs 12,000 per annum. Calculate the break-even points for output and sales and show what profit will result
if output is 90% of capacity?
Solution:
Contribution per machine is Rs 250 Rs. 200 = Rs. 50 Break-even Point for Output
(Output which will give contribution equal to fixed costs Rs. 12,000). Total Fixed Cost
BEP (for output)=
Contribution per unit
12,000
= =240 machines
50
Break-even Point for Sales
= Output Selling price per unit
= 240 Rs 250 = Rs 60,000.
Break-even point for sales can also be calculated with the help of any of the following formulae:
Total Fixed Cost 12,000
(i) BEP= =
Variable Cost per unit 200
1 1- Selling Price per unit 250
12,000
= = Rs 60,000
1/5
Total Fixed Cost Selling Price per unit
(ii) BEP =
Contribution per unit
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Meridian International School of Business Marginal Costing & Differential Costing2013
12,000 x 250
= = Rs 60,000
50
Total Fixed Cost
(iii) BEP=
P/V Ratio*
12,000
= = Rs 60,000
20%
Contribution 25,000
*P/V Ratio = x100 = x 100 = 20%.
Sales 1,25,000
Profit at 90% of the capacity has been calculated as follow:
Capacity 500 machines
Output at 90% of capacity 450 machines
Break-even point of output 240 machines
Since fixed overheads will be recovered in full at the break-even point, the entire contribution beyond the
break-even point will be the profit. The profit on 450 units, therefore, will be:
= Rs 50 (450 240) = Rs 10,500
1.10ASSUMPTIONS UNDERLYING CVP ANALYSIS/BREAK-EVEN CHARTS
The following assumptions are common to both Break-even Charts and CVP Analysis:
(i) Fixed costs remain constant at every level and they do not increase or decrease with change in output.
(ii) Variable cost fluctuates per unit of output. In other words, it varies in the same proportion in which the
volume of output or sales varies.
(iii) All costs are capable of being bifurcated into fixed and variable elements.
(iv) Selling price remains constant even when the volume of production or sales changes.
(v) Cost and revenue depend only on volume and not on any other factor.
(vi) Production and sales figures are either identical or changes in the inventory at the beginning and at the end
of the accounting period are not significant.
(vii) Either the sales mix is constant or only one product is manufactured.
1.11Advantages of Break-even Charts
Break even analysis enables a business organization to:
1. Measure profit and losses at different levels of production and sales.
2. To predict the effect of changes in price of sales.
3. To analysis the relationship between fixed cost and variable cost.
4. To predict the effect on profitablilty if changes in cost and efficiency.
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Meridian International School of Business Marginal Costing & Differential Costing2013
.
1.12Limitations of Break-even Charts
Break-even analysis is a very useful risk assessment technique and a useful device for testing the sensitivities
of business performance, the following limitations must be considered:
All costs resolved into fixed or variable
Variable costs fluctuate in direct proportion to volume.
Fixed costs remain constant over the volume range.
The selling price per unit is constant over the entire volume range.
The company sells only one product, or mix of products tends to remain constant.
Volumetric increase is the only factor affecting costs.
The efficiency in the use of resources will remain constant over the period.
1.13PROFIT GRAPH
A graphical representation that indicates the potential profit or loss of an investment at a given time (usually at
the expiration of the option) and at various stock prices, in order to inform business decisions on such
investment. It is also known as a "risk graph" and it allows investors to devise countermeasures if and
where high risk is involved.
The point of graph where the Sales and Total Cost (Expense) lines intersect is the break even point. The graph that is used to compare how alternatives on pricing, variable costs, or fixed costs may affect net
income(profit) as volume changes is called a P/V Chart or Profit-Volume Graph.
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Meridian International School of Business Marginal Costing & Differential Costing2013
1.14MARGIN OF SAFETY
Total sales minus the sales at break-even point is known as the margin of safety. Thus, the formula is: M.S. = T.S. B.E.S. Margin of Safety = Total Sales Break-even Sales. Margin of safety can also be computed according to the following formula:
Net Profit
Margin of Safety=
P/V Ratio
Margin of safety can also be expressed as a percentage of sales:
Margin of Safety
x100
Total Sales
Example
Total Sales Rs 1,50,000
Variable Costs 75,000
Fixed Costs 50,000
The margin of safety can be computed as follows:
Fixed Cost
Break-even Sales =
P/V Ratio
50,000
= =Rs 1,00,000
50%
Net Profit = Contribution Fixed Cost = Rs 75,000 Rs 50,000 = Rs 25,000
Margin of Safety = Rs 1,50,000 Rs.1,00,000 = Rs 50,000
Net Profit
=
P/V Ratio
25,000
= = Rs 50,000
50%
If the margin of safety is large, it is a sign of soundness of the business since even with a substantial reduction
in sales, profit shall be earned by the business. If the margin is small, reduction in sales, even to a small extent
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Meridian International School of Business Marginal Costing & Differential Costing2013
may affect the profit position very adversely and larger reduction of sales value may evenresult in losses. Thus,
margin of safety serves as an indicator to the strength of the business.
In order to rectify the unsatisfactory margin of safety, the management can take the following steps:
(i) Selling prices may be increased, but it should not affect the demand adversely otherwise the net sales
revenue shall stand reduced.
(ii) Fixed or the variable cost may be reduced.
(iii) Production may be enhanced, but it should be at a lower cost.
(iv) Unprofitable products may be substituted by profitable ones.
1.15ANGLE OF INCIDENCE
The angle of incidence is the angle between the sales line and the total cost line formed at the break-even-point
where the sales line and the total cost line intersect each other. The angle of incidence indicates profit earning
capacity of the business. A large angle of incidence indicates a high rate of profit and on the other hand, a
small angle of incidence indicates a low rate of profit. Usually the angle of incidence and margin of safety are
considered together to indicate the soundness of a business. A large angle of incidence with a high margin of
safety indicates the most favourable position of a business.
1.16DIFFERENTIAL COSTS AND INCREMENTAL COSTS
Differential cost is the difference between the cost of two alternative decisions, or of a change in output levels.
The concept is used to reach decisions about which alternatives to pursue, and which to drop. The concept can
be particularly useful in step costing situations, where producing one additional unit of output may require a
substantial additional cost
Incremental cost measures the addition to unit cost which results from an addition to output.It is generally expressed as a cost per unit.
Characteristics of Differential costing
1. In order to ascertain the differential costs, only total cost is needed and not cost per unit.
2. Existing level is taken to be the base for comparison with some future or forecasted level.
3. Differential cost is the economists concept of marginal cost. 4. It may be referred to as incremental cost when the difference in cost is due to increase in the level of
production and decremental costs when difference in cost is due to decrease in the level of production.
5. It does not form part of the accounting records, but may be incorporated in budgets.
6. It is not necessary to adopt marginal cost technique for differential cost analysis because it can be worked
out on the method of absorption costing or standing costing.
7. What is said of the differential cost above, applies to differential revenue also.
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Meridian International School of Business Marginal Costing & Differential Costing2013
1.17AREAS OF DECISION MAKING
Areas of decision-making:
(i) Stock management and inventory control decisions
(ii) Plant location decisions
(iii) Machinery replacement / capital budgeting decisions
(iv) Further processing decisions
(v) Product decisions Dropping or adding a product line (vi) Marketing decisions
(vii) Submitting tenders and quotations for new jobs based on relevant cost analysis
(viii) Acceptance of incremental orders in different situations like spare capacity, full capacity etc.
(ix) Make or buy decisions
(x) Product pricing decisions
(xi) Intra-Company transfer pricing decisions
(xii) Purchasing vs. lease financing decisions
The above areas involve the use of marginal costs, relevant cost and different cost approaches.
I. Inventory Decisions
Need
risk of obsolescence. Hence the optimum inventory levels, which lies somewhere between the maximum and
minimum levels, should be determined.
(a) Sales department would like to have maximum stock of all varieties of finished goods so as to meet all its
customer demand immediately.
(b) Production department may wish to produce large batches of a new products so that production runs are
long and costs are low.
(c) Financial control department would prefer low stock in order to reduce the capital tied up in stock.
So decisions regarding stock levels are usually concerned with seeking the best economic compromise between
conflicting objectives.
II. Plant Location Decisions:
The following are the basic aspects of plant location decisions:
(a) Selection of territory the state or territory in which the factory is to be located and (b) Selection of site the exact site where the factory is to be put up. Selection of territory. This aspect is influenced by:
(a) Entrepreneurs choice; (b) Tax benefit available; and
(c) Laws of the State, which may be suitable for setting up of the industrial units.
Selection of site: The advantages associated with each probable site may be analysed into the following
categories:
Natural Advantages Derived Advantages
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Meridian International School of Business Marginal Costing & Differential Costing2013
-in certain areas cheap and unskilled labour is available in plenty, in certain areas
skilled labour will be available.
actors of distribution such as transport facilities, freight rate concessions, etc.
Analysis of alternatives: If a number of alternative sites are available, decisions can be taken by reference to
the following aspects:
1. Relative advantages of one site over others
2. Capital expenditure of alternative site locations
3. Break-even analysis of the project at various site locations
4. Incremental rate of return
5. Intangible factors
III. Cost factors and non-cost-factors in an asset replacement decision Cost Factors:
Comparison of operating costs of the existing plant with that of alternative plant.
Figures of comparative profitability, return on capital employed and interest on capital.
Assessment of opportunity costs to determine whether the funds proposed to be invested in purchase of the
new asset in replacement could be more gainfully deployed elsewhere.
Effect of disposal of the existing plant.
Additional capital expenditure of an obligatory nature to be incurred, if any, on related or allied projects such
as those for welfare.
Effect on tax liability due to profit or loss on the sale of plant/machinery to be replaced.
Non Cost Factors:
1. Market standing of the product: If the product is likely to become obsolete or go out of fashion in the near
future, it will not be worthwhile to go in for plant replacement.
2. Nature of the market capability of absorbing the product manufactured by the new plant in its entirety at the anticipated price.
3. Constraints on the resources required for the new plant.
4. Possibility of any bottleneck or imbalances in subsequent operations or process, in the new plant and if so,
whether these can be removed.
5. Possibility of any substitute product coming up which make the replaced plant redundant.
6. Likely effects of any change in the policy of the Government with regard to import of raw materials, export
of products, levy of duties etc.
Areas of Decision Making
IV. Further Processing Decisions
The following steps are involved in decision making on further processing of joint products:
(a) Compute Additional Revenue = Sale Value after Further Processing Sales Value at split off (b) Compute Additional Costs = Further Processing costs + S & D OH if any
(c) Compute Additional Profit = Additional Revenue Additional Costs (d) If Additional Profit is positive, process further, else sell at split off point.Joint costs i.e. costs upto split-off
stage is irrelevant
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Meridian International School of Business Marginal Costing & Differential Costing2013
V. Product Development Decisions
1. Product development embraces new development, major modifications of existing products, manufacture of
products which are similar to those of competitors, product line acquisition, etc.
2. The six stages of innovation process, in the product development decisions are:
(a) Idea generation: Ideas are continually being generated through technology, competitors, firms scientists and salesmen & customer feedback. They also emanate from conferences and discussions, at meetings.
(b) Screening: Screening seeks to eliminate from further consideration those product ideas, which are not in
conformity with the Companys (a) objectives; or (b) resources. The objective may be maximum profit, sales stability and sales growth or company image. If the product idea is compatible with these objectives, it will be
examined in the light of availability of resources, viz. capital, know-how, production facilities to be used for
the manufacture, etc. Product ideas that pass these tests will move on to the next stage.
(c) Business analysis: This involves estimation of future sales, profits and rate of return for the proposed new
product and also to determine whether these are in conformity with the objectives of the company. The various
methods for carrying out business analysis are (a) Break-even analysis; (b) Discounted Cash Flow or NPV
method (c) Marketing mix method (d) Bayesian Decision method; (e) Standard Deviation method; and (f)
Critical Path method.(d) Developing the product in a concrete form: This involves the following four stages:
Engineering - preparation of prototype that is designed free of trouble for economical manufacture and
appealing to customer.Consumer preference testing to seek the distribution or strength of consumer preferences; Brand name to enable easy identification for the product; andPacking to ensure product protection, economy and also to serve as a sales promotional by using attractivepackaging designs.
(e) Test Marketing: Here, the entire product and marketing programme is tried out for the first time in a small
number of well-chosen and authentic sales environments. This primary motive of test marketing is to improve
knowledge of potential sales. It can also choose an alternative marketing plan after ascertaining market
position.(f) Commercialisation: After passing all the aforesaid stages of development, the project becomes ripe
for commercial production. By this time, the company gains confidence in the products future.
VI. Product Policy Decisions
A product policy decision involves the following:
a. Product modification decision
b. Product elimination decision; and
c. Product mix decision
(a) Product modification strategies
quality of product or to
compete successfully with the other manufacturers who supply product of good quality.
efficiency or versatility. It serves as an effective means of building a firms progressiveness and leadership.
strategy aims at improving the aesthetic appeal of the product in contrast to its
functional appeal. Changes in style of motor vehicles are examples of this strategy.
(b) Product elimination decision:
The cost of sustaining a weak product is as under: Un-recovered overheads; Loss of profit; Short production
runs and expensive set up times, and More attention of advertising and sales force time.
-meal basis: Where the loss becomes conspicuous and
hence necessary to eliminate the product.
inventories, or rising costs.
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Meridian International School of Business Marginal Costing & Differential Costing2013
(C) Product Mix Decision:
Product mix means a composite of product offered for sale by a firm. The firms final choice of a product strategy is based on its long run objective, viz. profits, sales, stability and sales growth. To achieve these
objectives the firm chooses an optimal product mix, considering the following factors:
The objective function, which is normally maximization of profits or minimization of cost;
The constraints within which the objective function is to be achieved. These may be machine capacity, raw
materials availability, labour time, sales potential, etc.
VII. Product distribution decision:
The objective of distribution is getting the right goods to the places at the right time for the optimal cost.
The basic output of a distribution system is the level of customer service, which can be defined as the number
of day of delivery. In other words it is the percentage of customers who should get their orders in so many
number of days. This level of service depends upon an analysis of probable-customers, competitors and
response to alternative levels of service available.
The provision of a certain level of customer service involves warehousing, transportation costs etc. These are
considered to be the inputs of a distribution system.
The system can be considered efficient if it maintains a particular level of service at minimum cost. This means
freight charges, warehousing cost, inventory carrying cost etc. should be minimum.
Decision-making tools used for this purpose are (a) Linear programming (Transportation Model); and (b)
Inventory models.
VIII. Dropping or adding a product line:
Since the objective of any business organization is to maximize its profits, the firm can consider the economies
of dropping the unprofitable products, and adding a more remunerative product(s).
In such cases, the firm may have two alternatives as under:
(a) To drop the unprofitable product and to leave the capacity unutilised.
(b) To drop the unprofitable product and to utilize the capacity for the manufacture of a more remunerative
product.
For this purpose, the contribution approach is adopted, taking the following factors into account:
1. Contribution from unprofitable product (i.e. Sale Revenue Less Variable Costs)
2. Specific fixed costs of the unprofitable product, which can now be avoided or reduced.
3. Contribution from the other profitable product, which is proposed to be produced with the balance capacity.
IX. Make or Buy Decisions:
Make or buy decisions may be required to be taken in respect of component / raw material parts. In such cases,
the marginal costing and opportunity costing approaches shall be adopted in decision making. The decisions
will be based on the following computation:
(a) Compute Cost of Manufacturing = Variable Costs
+ Specific Fixed Cost (if any)
+ Opportunity Cost (in case of full capacity operations)
(b) Compute Cost of Buying = Direct Purchase Costs
+ Indirect Costs like buying commission
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Meridian International School of Business Marginal Costing & Differential Costing2013
+ Opportunity Cost if any (e.g. Purchase of different quality raw material, leading to reduction in selling price
of finished product).
(c) Decisions will be as under:
If cost of manufacturing < Cost of Buying, the firm should go for manufacturing
If cost of manufacturing < Cost of Buying, then the firm is indifferent
If cost of manufacturing < Cost of Buying, the firm should go for buying