Casio CFX-9850G PLUS, User'S Manual & Technical Reference

Page: 352 / 486

324
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.
ja
w
h.cf w
- bfaa w
1
(
SI
)
P.7
P.6