how to found compound interest ?
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Answer:
= P(1 + r/n)nt
Calculate Principal Amount, solve for P. P = A / (1 + r/n)nt
Calculate rate of interest in decimal, solve for r. r = n[(A/P)1/nt - 1]
Calculate rate of interest in percent. R = r * 100.
Calculate time, solve for t.

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Answer:
Compound Interest Formulas and Calculations:
1. Calculate Accrued Amount (Principal + Interest) A = P(1 + r/n)nt
2. Calculate Principal Amount, solve for P. P = A / (1 + r/n)nt
3. Calculate rate of interest in decimal, solve for r. r = n[(A/P)1/nt - 1]
4. Calculate rate of interest in percent. R = r * 100.
5. Calculate time, solve for t.