Casio FX-CG10 Software User Guide - Page 274
Converting between the nominal interest rate and effective interest rate, interest rate
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• "End" selected for the Setup screen Payment setting: BAL0 = PV • "Begin" selected for the Setup screen Payment setting: INT1 = 0 and PRN1 = PMT u Converting between the nominal interest rate and effective interest rate The nominal interest rate (I% value input by user) is converted to an effective interest rate (I%' ) for installment loans where the number of installments per year is different from the number of compound interest calculation periods. { }[C/Y] I%' = (1+ I% [P/Y ] ) -1 × 100 100 × [C/Y ] The following calculation is performed after conversion from the nominal interest rate to the effective interest rate, and the result is used for all subsequent calculations. i = I%'÷100 Press 4(AMORTZN) from the Financial 1 screen to display the following input screen for amortization. 4(AMORTZN) PM1....... first installment of installments 1 through n PM2....... second installment of installments 1 through n n installments I% ........ interest rate PV ........ principal PMT ..... payment for each installment FV ........ balance following final installment P/Y ....... installments per year C/Y ....... compoundings per year 7-10