Amortization - Casio fx-9860G SD User Manual

7-5 Amortization

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.
u Formula
1 payment 1 payment
a
: interest portion of installment PM1 (
b
: principal portion of installment PM1 (
c
: balance of principal after installment PM2 (
1 payment 1 payment
d
: total principal from installment PM1 to payment of installment PM2 (Σ
e
: total interest from installment PM1 to payment of installment PM2 (Σ
a b
* + = one repayment (
7-5-1
Amortization
a a
b b
1 1 .............. .............. PM1 PM1 ..................... .....................
Number of Payments Number of Payments
INT
)
PRN
)
BAL
1 1 ............... ............... PM1 PM1 .................. ..................
Number of Payments Number of Payments
PMT
)
20061001 20070101
c c
PM2 PM2 ............ ............
)
e e
d d
PM2 PM2 ............... ...............
PRN
INT
Last Last
Last Last
)
)