Simple Interest; Formula - Casio FX-CG20 AU User Manual

2. Simple Interest

This calculator uses the following formulas to calculate simple interest.
u Formula
365-day Mode
360-day Mode
Press 1(SIMPLE) from the Financial 1 screen to display the following input screen for simple
interest.
1(SIMPLE)
n
........... number of interest periods (days)
I %
........ annual interest rate
PV
........ principal
After configuring the parameters, use one of the function menus noted below to perform the
corresponding calculation.
• { SI } ... {simple interest}
• {SFV} ... {simple future value}
• An error occurs if parameters are not configured correctly.
Use the following function menus to maneuver between calculation result screens.
• {REPEAT} ... {parameter input screen}
• {GRAPH} ... {draws graph}
SI' = n SI' = n
× PV × i × PV × i
365 365
SI' = n SI' = n
× PV × i × PV × i
360 360
SI = –SI' SI = –SI'
SFV = –(PV + SI' ) SFV = –(PV + SI' )
I% I%
SI
: interest
i = i =
100 100
n
: number of interest periods
I% I%
PV
i = i = : principal
100 100
I %
: annual interest
SFV
: principal plus interest
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