Amortization Of A Loan - Casio FX-9750G PLUS User's Manual & Technical Reference

19-5 Amortization of a Loan

This calculator can be used to calculate the principal and interest portion of a
monthly installment, the remaining principal, and amount of principal and interest
repaid up to any point.
a
b
c
d
e
*
BAL
u u u u u Converting between the nominal interest rate and effective interest
The nominal interest rate (
interest rate (
is different from the number of compound interest calculation periods.
Amount of single payment
e
d
1 2
: Interest portion of installment PM1 (
: Principal portion of installment PM1 (
: Balance of principal after installment PM2 (
: Total principal from installment PM1 to payment of installment PM2 (Σ
: Total interest from installment PM1 to payment of installment PM2 (Σ
a b
+ = one repayment (
a : INT = I BAL
PM1
b : PRN = PMT + BAL
PM1
c : BAL = BAL
PM2
Σ
PM2
d : PRN = PRN
PM1
Σ
PM2
e : INT = INT
PM1
PV INT
= ( = 0 and
0 1
rate
I
%') for installment loans where the number of installments per year
{
I%
I%' = (1 +
100 × [C / Y ]
m
INT
)
PRN
PMT
)
× i I × (PMT sign)
PM1–1
× i
PM1–1
+ PRN
PM2–1 PM2
+ PRN + ... + PRN
PM1 PM1+1
+ INT + ... + INT
PM1 PM1+1
PRN PMT
= at beginning of installment term)
1
I
% value input by user) is converted to an effective
}
[C / Y ]
[P / Y ]
×100
) –1
Investment Appraisal
a
b
n
(Number of payments)
)
BAL
)
PM2
PM2
19 - 4
c
PRN
)
INT
)
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