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2 simple interest calculations – Casio fx-9750G PLUS User Manual

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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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