2 simple interest calculations – Casio fx-9750G PLUS User Manual
Page 352
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19-2 Simple Interest Calculations
This calculator uses the following formulas to calculate simple interest.
365-day Mode
SI'
= n
365 ×
PV
× i
SI'
= n
360 ×
PV
× i
I
%
100
i
=
I
%
100
i
=
SI
: interest
n
: number of interest
360-day Mode
periods
PV
: principal
I
%
: annual interest
SFV
: principal plus interest
SI
= –SI'
SFV
= –(PV + SI')
Press 1 (SMPL) from the Financial 1 screen to display the following input screen
for simple interest calculation.
n ......................
number of interest periods (days)
I
% ................
annual interest rate
PV
.................. principal
• {
SI
}
/{
SFV
} ... calculates {interest}/{principal plus interest}
Example
What would the interest amount and principal plus interest be
for a loan of $1,500 borrowed for 90 days at an annual rate of
7.25%?
Use the 360-day mode and two decimal places.
In the set up screen, specify “
360” for Date Mode and “Fix2” for Display and then
press J.
Perform the following key operations from the input screen.
jaw
h.cfw
-
bfaaw
1
(
SI
)
P.7
P.6
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