140 likes | 289 Views
CSE 2337. Chapter 6 Financial Calculations. Interest. Factors Time Risk monetary policies Ways interest is calculated simple compound. Simple Interest. Paid solely on the amount of the original principal value
E N D
CSE 2337 Chapter 6 Financial Calculations
Interest • Factors • Time • Risk • monetary policies • Ways interest is calculated • simple • compound
Simple Interest • Paid solely on the amount of the original principal value • Simple interest = Principal * Interest rate per time period * Number of time periods
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
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)
Example • 1,000,000 Loan, 8% rate, compounded quarterly, over 5 years
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)
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)