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The formula for compound interest is

FV = PV * (1 + i) ^ t

Where

FV = Future Value

PV = Present Value

t = time

i = interest rate

As an example, suppose you have $100 now, the interest rate is 5%, and the time is 4 years. The future value is then

FV = $100 * (1 + 0.05) ^ 4 = $100 * (1.05)^4 = $100 * 1.21550625 =~ $121.55

After four years, you will have $121.55. Note the answer has been rounded to the nearest cent.

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15y ago

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