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    Chapter 17Process costing

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    Treatment in accounts Normal loss : The cost of normal loss is absorbed by units

    produced.

    When normal loss has a scrap value, the same is credited inthe process account.Abnormal gain

    Abnormal gain does not affect cost of normal production.

    The process account is debited with full cost of abnormal gain. The abnormal gain account is debited and normal process loss

    account is credited.

    The balance is transferred to costing Profit and Loss account as

    abnormal gain.

    Cost per unit

    The total cost is deducted by normal loss scrap value and then it is

    divided by the input units minus the normal loss units.

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    From the following particulars of two processes Process X and Process Y prepareprocess accounts of X and Y

    Process X Process Y

    Input (units) 5000 4600

    Normal Loss 10% ?

    Cost incurred (Rs.) Materials 8000 1500

    Direct Labours 3000 4000

    Overheads 2750 3010

    Scrap value 0.50 2

    Output of Process Y was 4300 units and cost is Rs.5 and there is no WIP, closing oropening stocks.Dr--------------------------------------------------

    Units Cost/unit AmountTo Mat 5000 8000To Lab 3000To OH 2750

    ----------- --------------

    5000 13750ToAbnormalGain 100 3.00 300

    ---------- ------------5100 14050

    Cost per unit = (Total process cost scrap value of normalloss)/ (Inputsnormal loss)

    = 13750250 / 5000500

    = 3.00

    Process X AccountCr.

    --------------------------------------------------------

    Units Cost/unit Amount

    By Normal loss 500 0.50 250

    (scrap value)

    By process

    Y A/c 4600 3.00 13800

    ----------- --------------

    5100 14050

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    Abnormal loss Abnormal loss is charged to the respective cost of production.

    The process account is credited by abnormal loss account with cost of

    materials, labours and overheads equivalent to good units. Abnormal loss units rank equal with normal units.

    Abnormal loss account is credited by realizable scrap value and thebalance is written off to costing Profit and Loss Account as abnormalloss.

    Process Y AccountDr

    --------------------------------------------------

    Units Cost/unit Amount

    To Process X

    A/c. 4600 3.00 13800

    To Mat 1500

    To Lab 4000

    To OH 3010

    ----------- --------------

    4600 22310

    Cost per unit = (Total process costscrap valueof normal loss)/ (Inputsnormal loss)

    5 = 223102x / 4600xx = 230 units

    Cr.

    --------------------------------------------------------

    Units Cost/unit Amount

    By Normal loss 230 2.00 460

    (scrap value)

    By Abnormal

    Loss 70 5.00 350

    By Finished

    goods A/c 4300 5.00 21500

    ----------- --------------

    4600 22310

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    Inter process profit ExampleFollowing details are available for two processes X and Y

    in Rupees

    Process X Process Y

    Materials 15000 --Labour 10000 15000

    Overheads 10000 15000

    Closing stock (at cost) 5000 7500

    The output from process X is transferred to process Y at cost plus 25% mark-upbasis and also the output from Y is also charged at 25% mark-up basis. Finished

    stock sold at Rs.90000 and stocks worth of Rs.15000 remained unsold. Noopening, closing work-in-progress.

    Show process Accounts and profits.

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    Chapter 7 & 8Standard costing

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    Managing Costs Standard

    cost

    Actual

    cost

    Comparison between

    standard and actual

    performancelevel

    Cost

    variance

    10-7

    A managerial accountants

    budgetary-control system has three

    parts.

    First, a predetermined or standard cost is

    set. In essence, a standard cost is a

    budget for the production of one unit of

    product or service. It serves as the

    benchmark in the budgetary-control

    system. When the firm produces morethan one unit, the managerial accountant

    uses the standard unit cost to determine

    the budgeted cost of production or the

    total standard cost.

    Second, the managerial accountant measures the actual cost incurred in the

    production process.

    Third, the managerial accountant compares the actual cost with the budgeted or

    standard cost.

    Any difference between the two is called a cost variance. Cost variances then are used

    in controlling costs

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    Management by Exception

    DirectMaterial

    Managers focus on quantities and costs

    that exceed standards, a practice known as

    management by exception.

    Type of Product Cost

    Amount

    DirectLabor

    Standard

    10-8

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    Managers do not have time to investigate everyvariance between actual and standard costs.

    They focus their attention on the causes of significantcost variances.

    This is called management by exception.

    When operations are going along as planned, actual

    costs and profit will typically be close to the budgetedamounts.

    However, if there are significant departures fromplanned operations, such effects will show up assignificant cost variances.

    Managers investigate these variances to determinetheir causes, if possible, and take corrective actionwhen indicated.

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    Management by Exception (MBE) is a practice where onlysignificant deviations from a budget or plan are brought to theattention of management.

    The idea behind it is that management's attention will be focusedonly on those areas in need of action.

    When they are notified of a variance, they can hone in on thatspecific issue and let staff handle everything else.

    If nothing is brought up, then management can assume everythingis going according to plan.

    This model is similar to the vital signs monitoring systems in

    hospital critical care units.

    When one of the patient's vital signs goes outside the rangeprogrammed into the machine, an alarm sounds and staff runs to the

    rescue.

    If the machine is quiet, it's assumed that the patient is stable, and

    they will receive only regular staff attention.

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    MBE can bring forward business errors and oversights,

    ineffective strategies that need to be improved, changes in

    competition and business opportunities.

    MBE is intended to reduce the managerial load and enable

    managers to spend their time more effectively in areas where

    it will have the most impact.

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    Setting Standards

    Analysis of

    Historical Data

    Task

    Analysis

    Cost

    Standards

    10-12

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    Two methods are typically used for setting coststandards: analysis of historical data and task analysis.

    One indicator of future costs is historical cost data. In a

    mature production process, where the firm has a lot ofproduction experience, historical costs can provide agood basis for predicting future costs.

    In using task analysis, the emphasis shifts from what

    the product did cost in the past to what it should costin the future.

    The managerial accountant typically works withengineers to conduct studies in an effort to determine

    exactly how much direct material should be required,how machinery should be used in the productionprocess, and many direct labor hours are required.

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    Accountants, engineers, personnel administrators,and production managers combine efforts to set

    standards based on experience and expectations.

    Participation in Setting Standards

    10-14

    Standards should not be determined by the managerial accountant alone. People generally

    will be more committed to meeting standards if they are allowed to participate in settingthem.

    For example, production supervisors should have a role in setting production cost

    standards, and sales managers should be involved in setting targets for sales prices and

    volume.

    In addition, knowledgeable staff personnel should participate in the standard-setting

    process.

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    Perfection versus Practical Standards: A

    Behavioral Issue

    Should we usepractical standards

    or perfection

    standards?

    Practical standards

    should be set at levels

    that are currently

    attainable with

    reasonable and

    efficient effort.

    10-15

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    Standards that are as tight as practical, butstill are expected to be attained, are calledpractical (or attainable) standards.

    Such standards assume a production processthat is as efficient as practical under normaloperating conditions.

    Practical standards allow for such occurrencesas occasional machine breakdowns andnormal amounts of raw-material waste.

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    I agree. Perfection

    standardsare

    unattainable and therefore

    discouraging to mostemployees.

    Perfection versus Practical Standards: A

    Behavioral Issue

    10-17

    Some managers believe that perfectionstandards motivate employees to achieve

    the lowest cost possible.

    They claim that since the standard is

    theoretically attainable, employees will

    have an incentive to come as close as

    possible to achieving it.Other managers and many behavioral

    scientists disagree.

    They feel that perfection standards

    discourage employees, since they are so

    unlikely to be attained.

    Moreover, setting unrealistically difficultstandards may encourage employees to

    sacrifice product quality to achieve lower

    costs.

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    Use of Standards by Service Organizations

    Standard cost analysismay be used in any

    organization withrepetitive tasks.

    A relationship betweentasks and output

    measures must beestablished.

    10-18

    Many service industry firms, nonprofit

    organizations, and governmental units

    make use of standards.Fast food restaurants set a standard for the

    amount of ingredients in a menu item.

    Airlinesset standards for fuel and

    maintenance costs.

    Insurance companies set standards for the

    amount of time to process an insuranceapplication.

    Even a district motor vehicle office may

    have a standard for the number of days

    required to process and return an

    application for vehicle registration.

    These and similar organizations usestandards in budgeting and cost control in

    much the same way that manufacturers

    use standards.

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    Standard CostVariances

    Cost Variance Analysis

    QuantityVariancePrice Variance

    The difference between

    the actual price and the

    standard price

    The difference between

    the actual quantity and

    the standard quantity

    10-19

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    There are two types of standard costvariances: price variance and quantityvariance.

    A price variance arises when there is adifference between the actual price and thestandard price.

    A quantity variance occurs when there is adifference between the actual quantity usedand the standard quantity to be used.

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    A General Model for Variance Analysis

    Actual Quantity Actual Quantity Standard Quantity

    Actual Price Standard Price Standard Price

    Price Variance Quantity Variance

    Standard price is the amount that should havebeen paid for the resources acquired.

    10-23

    In this model, the standard price is the amount that should have been paid for the

    resources acquired.

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    A General Model for Variance Analysis

    Actual Quantity Actual Quantity Standard Quantity

    Actual Price Standard Price Standard Price

    Price Variance Quantity Variance

    Standard quantity is the quantity that should havebeen used.

    10-24

    The standard quantity is the quantity of that resource that should have been used.

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    Standard Costs

    Lets use the concepts of

    the general model to

    calculate standard cost

    variances, starting with

    direct material.

    10-25

    Lets use the concepts of the general model to calculate standard cost variances for

    Hanson, Inc. We will start with direct materials.

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    Hanson Inc. has the following direct material

    standard to manufacture one Zippy:1.5 pounds per Zippy at $4.00 per pound

    Last week 1,700 pounds of material were

    purchased and used to make 1,000 Zippies.The material cost a total of $6,630.

    Material VariancesZippy

    10-26

    Hanson Inc. manufactures a product called a zippy. The direct material standard for one

    zippy is 1.5 pounds of material at a cost of $4.00 per pound. Last week, 1,700 pounds of

    materials were purchased and used to make 1,000 Zippies. The actual cost of the

    materials was $6,630

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    What is the actualprice per pound

    paid for the material?

    a. $4.00 per pound.

    b. $4.10 per pound.

    c. $3.90 per pound.d. $6.63 per pound.

    Material Variances Zippy

    10-27To calculate the direct-material price variance, we must first determine the actual priceper pound of material

    M t i l V i

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    What is the actualprice per pound

    paid for the material?

    a. $4.00 per pound.

    b. $4.10 per pound.

    c. $3.90 per pound.d. $6.63 per pound.

    AP = $6,630 1,700 lbs.AP = $3.90 per lb.

    Material Variances

    Zippy

    10-28

    The actual price per pound can be calculated by taking the total actual cost

    of $6,630 and dividing it by the actual number of pounds which was 1,700.

    Therefore, the actual cost per pound was $3.90.

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    Hansons direct-material price variance (MPV)

    for the week was:

    a. $170 unfavorable.

    b. $170 favorable.

    c. $800 unfavorable.

    d. $800 favorable.

    Material Variances Zippy

    10-29

    Now that we know the actual price per pound, the standard price per pound and the actual

    number of pounds used, we can calculate the material price variance

    Material Variances

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    Hansons direct-material price variance (MPV)

    for the week was:

    a. $170 unfavorable.

    b. $170 favorable.

    c. $800 unfavorable.d. $800 favorable.

    MPV = AQ(AP - SP)MPV = 1,700 lbs. ($3.90 - 4.00)

    MPV = $170 Favorable

    Material Variances

    Zippy

    10-30

    The standard price of $4.00 is subtracted from the actual price of $3.90.

    This difference is multiplied by the actual quantity of 1,700 pounds.

    The resulting variance is a negative $170.

    The variance is favorable because the actual price per pound was less than the standard

    price per pound.

    Material Variances

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    The standard quantity of material that

    should have been used to produce

    1,000 Zippies is:

    a. 1,700 pounds.

    b. 1,500 pounds.c. 2,550 pounds.

    d. 2,000 pounds.

    Material Variances

    Zippy

    10-31

    To calculate the direct-material quantity variance, we must first determine the standard

    quantity of materials that should have been used to produce 1,000 Zippies.

    Material Variances

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    The standard quantity of material that

    should have been used to produce

    1,000 Zippies is:

    a. 1,700 pounds.

    b. 1,500 pounds.c. 2,550 pounds.

    d. 2,000 pounds.

    SQ = 1,000 units 1.5 lbs per unit

    SQ = 1,500 lbs

    Material Variances

    Zippy

    10-32

    The standard quantity of material for one Zippy is 1.5 pounds.

    Since 1,000 Zippies were produced, we must multiply 1.5 pounds times 1,000 units to get

    1,500 pounds of material for the standard quantity

    Material Variances

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    Hansons direct-material quantity variance (MQV) for

    the week was:

    a. $170 unfavorable.

    b. $170 favorable.

    c. $800 unfavorable.d. $800 favorable.

    Material Variances

    Zippy

    10-33

    Now that we know the actual quantity used, the standard quantity that should have been

    used and the standard price per pound, we can calculate the material quantity variance.

    Material Variances

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    Hansons direct-material quantity variance (MQV) for

    the week was:

    a. $170 unfavorable.

    b. $170 favorable.

    c. $800 unfavorable.d. $800 favorable.

    MQV = SP(AQ - SQ)

    MQV = $4.00(1,700 lbs - 1,500 lbs)

    MQV = $800 unfavorable

    Material Variances

    Zippy

    10-34

    The standard quantity of 1,500 pounds is subtracted from the actual quantity of 1,700

    pounds.

    This difference is multiplied by the standard price of $4.00 per pound.

    The resulting variance is a positive $800.

    The variance is unfavorable because the actual quantity used was greater than the

    standard quantity that should have been used to make the 1,000 Zippies.

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    Actual Quantity Actual Quantity Standard Quantity

    Actual Price Standard Price Standard Price

    1,700 lbs. 1,700 lbs. 1,500 lbs.

    $3.90 per lb. $4.00 per lb. $4.00 per lb.

    $6,630 $ 6,800 $6,000

    Price variance

    $170 favorable

    Quantity variance

    $800 unfavorable

    Material Variances Summary

    10-35

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    To summarize, the direct-material price varianceis the difference between the actual quantity atthe actual price and the actual quantity at thestandard price.

    The result is a $170 favorable price variance. The direct-material quantity variance is the

    difference between the actual quantity at thestandard price and the standard quantity at the

    standard price. The result is a $800 unfavorable quantity

    variance.

    Material Variances

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    The price variance is computed on

    the entire quantity purchased.

    The quantity variance is computedonly on the quantity used.

    Hanson purchased and used1,700 pounds. How are thevariances computed if the

    amount purchased differsfromthe amount used?

    Zippy

    10-37

    When the amount of direct-materials purchased is different from the amount

    used, the direct-material price variance is based on the quantity purchased.

    The difference between the purchase price and the standard price are

    highlighted by the price variance, which relates to thepurchasing function.

    In contrast, the direct-material quantity variance is based on the amount ofmaterial used in production.

    The quantity variance highlights differences between the quantity of material

    actually used and the standard quantity allowed.

    Material Variances

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    Hanson Inc. has the following materialstandard to manufacture one Zippy:

    1.5 pounds per Zippy at $4.00 per pound

    Last week 2,800 pounds of material werepurchased at a total cost of $10,920, and

    1,700 pounds were used to make 1,000Zippies.

    Material VariancesZippy

    10-38

    Lets try an example where the amount of materials purchased is different than the amount

    of materials used in production.The direct material standard for one zippy is still 1.5 pounds of material at a cost of $4.00 per

    pound.

    Last week, 2,800 pounds of materials were purchased at a total cost of $10,920.

    1,700 pounds of material were used to make 1,000 Zippies.

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    The standard price of $4.00 is subtracted fromthe actual price of $3.90.

    This difference is multiplied by the amount ofmaterials purchases, which is 2,800 pounds.

    The resulting direct-material price variance is anegative $280.

    The variance is favorable because the actual priceper pound was less than the standard price perpound.

    But the variance is larger when a greater quantityof materials were purchased.

    MQV = SP(AQ - SQ)

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    Actual QuantityUsed Standard Quantity

    Standard Price Standard Price

    1,700 lbs. 1,500 lbs.

    $4.00 per lb. $4.00 per lb.

    $6,800 $6,000

    Quantity variance

    $800 unfavorable

    Quantity variance isunchanged because actual

    and standard quantities are

    unchanged.

    Material Variances

    Zippy

    MQV = SP(AQ SQ)

    MQV = $4.00(1,700 lbs

    - 1,500 lbs)

    MQV = $800unfavor.

    10-41

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    To calculate the material quantity variance, thestandard quantity of 1,500 pounds is subtracted fromthe actual quantity of 1,700 pounds.

    This difference is multiplied by the standard price of

    $4.00 per pound. The resulting direct-material quantity variance is a

    positive $800.

    The variance is unfavorable because the actual quantityused was greater than the standard quantity thatshould have been used to make the 1,000 Zippies.

    Notice that the amount of material purchased did noteffect this variance.

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