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What is the formula of principal, rate, time to find interest?
Simple Interest (S.I) is the method of calculating the interest amount for some principal amount of money.
Simple Interest = $\frac{(P \times R \times T) }{100}$
Where,
P = Principal amount
R = Interest rate (in %)
T = Time duration (in years)
Compound interest (or compounding interest) is interest calculated on the initial principal, which also includes all of the accumulated interest from previous periods on a deposit or loan.
Compound Interest = Amount – Principal
Where the amount is given by:
$A=P\left(1+\frac{r}{n}\right)^{n t}$
Where:
$A=$resulting amount (future value)
$P=$amount of principal (present value)
$r=$annual interest rate
$n=$number of compounding periods per year
$t=$time (in years)
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