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$3,000 invested at 7% for 40 years

Future value

$44,923

Interest earned

$41,923

Total growth

1,397.45%

Investing $3,000 at 7% compounded annually for 40 years grows to $44,923. That's $41,923 of compound interest earned on your original $3,000.

FV = $3,000 × (1 + 7%)^40

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