Casio FX-9860G Manual

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20070201

7-2 Simple Interest

This calculator uses the following formulas to calculate simple interest.

u Formula

365-day Mode SI : interest

n : number of interest

360-day Mode periods

PV : principal

I% : annual interest

SFV : principal plus interest

Press 1(SMPL) from the Financial 1 screen to display the following input screen for simple

interest.

1(SMPL)

n ..................................number of interest periods (days)

I% ............................... annual interest rate

PV ............................... principal

After conﬁ guring the parameters, use one of the function menus noted below to perform the

corresponding calculation.

• {SI} … {simple interest}

• {SFV} … {simple future value}

• An error (Ma ERROR) occurs if parameters are not conﬁ gured correctly.

SI' =

n

365

× PV × i

SI' =

n

360

× PV × i

I%

100

i =

I%

100

i =

SI' =

n

365

× PV × i

SI' =

n

360

× PV × i

I%

100

i =

I%

100

i =

SI = –SI'

SFV = –(PV + SI')

SI = –SI'

SFV = –(PV + SI')

7-2-1

Simple Interest