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$500 invested at 5% for 40 years

Future value

$3,520

Interest earned

$3,020

Total growth

603.999%

Investing $500 at 5% compounded annually for 40 years grows to $3,520. That's $3,020 of compound interest earned on your original $500.

FV = $500 × (1 + 5%)^40

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