Casio FX-7400GII - SOFTWARE VERSION 2-00 User Manual page 203

a : a :
b : PRN b : PRN
c : BAL c : BAL
PM2 PM2
d : d : PRN = PRN PRN = PRN
PM1 PM1
PM2 PM2
e : e :
PM1 PM1
BAL PV
= ( = 0 and
0 1
Converting between the nominal interest rate and effective interest rate
The nominal interest rate (
I
( %' ) for installment loans where the number of installments per year is different from the
number of compound interest calculation periods.
{ {
I%' = I%' =
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 i = I%'÷100
Press (AMT) from the Financial 1 screen to display the following input screen for
amortization.
(AMT)
PM1....... first installment of installments 1 through
PM2....... second installment of installments 1 through
n
........... installments
I
% ........ interest rate
PV
........ principal
..... payment for each installment
FV
........ balance following final installment
P Y
/ ....... installments per year
C Y
/ ....... compoundings per year
After configuring the parameters, use one of the function menus noted below to perform the
corresponding calculation.
• {BAL} ... {balance of principal after installment PM2}
• {INT} ... {interest portion of installment PM1}
• {PRN} ... {principal portion of installment PM1}
= I BAL = I BAL i I i I
PM1 PM1 PM1–1 PM1–1
= = + BAL + BAL
PM1 PM1 PM1–1 PM1–1
= BAL = BAL + PRN + PRN
PM2 PM2 PM2–1 PM2–1
+ PRN + PRN
PM1 PM1
= = + +
PM1 PM1 PM1+1 PM1+1
PRN
= at beginning of installment term)
1
I
% value input by user) is converted to an effective interest rate
[C/Y ] [C/Y ]
I% I%
[P/Y ] [P/Y ]
(1+ (1+ ) )
100 × [C/Y ] 100 × [C/Y ]
( ( sign) sign)
i i
PM2 PM2
+ ... + PRN + ... + PRN
PM1+1 PM1+1 PM2 PM2
+ ... + + ... +
PM2 PM2
} }
× 100 × 100
–1 –1
n
n
7-8