6 interest rate conversion, Interest, Rate – Casio SERIES FX-9860G User Manual
Page 387: Conversion, 6 interest, 7 cost, selling price, margin
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7-6 Interest Rate Conversion
The procedures in this section describe how to convert between the annual percentage rate
and effective interest rate.
u Formula
APR
: annual percentage rate (%)
EFF
: effective interest rate (%)
n
: number of compoundings
Press
5(CNVT) from the Financial 1 screen to display the following input screen for interest
rate conversion.
5(CNVT)
n
.................................. number of compoundings
I
%................................. interest rate
After confi guring the parameters, use one of the function menus noted below to perform the
corresponding calculation.
• {
'EFF} … {converts annual percentage rate to effective interest rate}
• {
'APR} … {converts effective interest rate to annual percent rate}
• An error (Ma ERROR) occurs if parameters are not confi gured correctly.
Use the following function menu to maneuver between calculation result screens.
• {REPT} … {parameter input screen}
EFF
=
n
APR/
100
1 +
–1
× 100
n
EFF
=
n
APR/
100
1 +
–1
× 100
n
APR
=
100
EFF
1 +
–1
× n ×100
1
n
APR
=
100
EFF
1 +
–1
× n ×100
1
n
7-6-1
Interest Rate Conversion