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$3,000 invested at 10% for 40 years

Future value

$135,778

Interest earned

$132,778

Total growth

4,425.93%

Investing $3,000 at 10% compounded annually for 40 years grows to $135,778. That's $132,778 of compound interest earned on your original $3,000.

FV = $3,000 × (1 + 10%)^40

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