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$500 invested at 8% for 40 years

Future value

$10,862

Interest earned

$10,362

Total growth

2,072.45%

Investing $500 at 8% compounded annually for 40 years grows to $10,862. That's $10,362 of compound interest earned on your original $500.

FV = $500 × (1 + 8%)^40

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