1 cse 2337 chapter 6 financial calculations. 2 interest factors –time –risk –monetary policies...
TRANSCRIPT
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CSE 2337Chapter 6
Financial Calculations
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Interest
• Factors– Time– Risk– monetary policies
• Ways interest is calculated– simple– compound
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Simple Interest
• Paid solely on the amount of the original principal value
• Simple interest = Principal * Interest rate per time period * Number of time periods
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Compound Interest
• Adding interest earned each period to the principal for purposes of computing interest for the next period
• Has greater total value than simple interest
• Used by most financial institutions• Annual percentage yield (APY)
– Equivalent yearly simple interest rate, taking compounding into account
• Annual percentage rate (APR)– Reflects interest being paid on actual amount
borrowed
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PMT
• Finds value of payment per period, assuming are constant payments and constant interest rate for duration of loan
• PMT(rate,nper,pv,fv,type)
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PMT Arguments
rate Interest rate per compounding period
nper Number of compounding periods
pv Present value
fv Future value (compounded amount)
type Designates when payments are madeType 0 – end of periodType 1 – beginning of period
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Example
• 1,000,000 Loan, 8% rate, compounded quarterly, over 5 years
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Cell Referencing
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Other Financial Functions
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Other Loan Options
Down payment • Adjust present value (pv) to reflect exact value of the loan
Balloon payment
• Specify negative future value (fv)
Mortgage fees • Adjust the pv of the loan by subtracting the fees from the loan amount
• Recalculate the interest rate using the same payments and loan periods, with the new pv amount
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Amoritization Table
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Principal and Interest Payments
• PPMT function– Calculates the value of the principal
payment for a specified period– PPMT(rate,per,nper,pv,fv,type)
• IPMT function– Calculates the value of the interest
payment for a specified period– IPMT(rate,per,nper,pv,fv,type)
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Arguments to PPMT and IPMT
rate Interest rate per period
per Period for which interest or principal amount will be calculated
nper
Total number of periods in the financial transaction
pv Value at the beginning of the financial transaction
fv Value at the end of the financial transaction
type Payment type of 0 or 1 (made at beginning or end of each period, respectively)
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Calculating Prin. and INT. Between Periods
• CUMIPMT function– Automatically calculates interest values
between two periods– CUMIPMT(rate,nper,pv,start_period,end_period,type)
• CUMPRINC function– Automatically calculates principal values
between two periods– CUMPRINC(rate,nper,pv,start_period, end_period,type)