Casio fx-9750G PLUS - Manual (Page 358)

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Example Calculate the interest rate required to repay a $2,300 balance
on a loan in two years paying back $100 per month, when
interest is compounded monthly.
Perform the following key operations from the input screen.
c*bcw (Input n = 2 × 12.)
c
cdaaw ( PV = 2,300)
- baaw ( PMT = –100)
aw ( FV = 0)
bcw (Monthly installment)
(Monthly compounding)
2 ( I %)
u u u u u Loan when final installment is greater than other installments
Input Condition: Total of equal amount payments is greater than the difference
between the loan amount and final payment amount.
Formula Representation of Input Condition:
PV , PMT , FV do not equal zero.
PV + FV > – n × PMT when FV > PV
PV + FV < – n × PMT when FV < PV
Example Calculate the interest rate required to repay a $2,500 balance
on a loan in two years (24 installments) paying back $100 per
month and a final $200 installment, when interest is com-
pounded monthly.
Perform the following key operations from the input screen.
c*bcw (Input n = 2 × 12.)
c
cfaaw ( PV = 2,500)
- baaw ( PMT = –100)
- caaw ( FV = –200)
bcw (Monthly installment)
(Monthly compounding)
2 ( I %)
19 - 3
Compound Interest Calculations
The value you input for P/Y (the
number of installment periods per
year) is also automatically input for
C/Y (the number of compounding
periods per year). You can input
another value for
C/Y if you want.