Compound Interest on $20,000 at 10% for 10 Years

$20,000 invested at 10% annual compound interest for 10 years grows to $51,874.85. That is $31,874.85 in interest earned on top of your original $20,000 — a 159.4% total return. Compound interest is called the "eighth wonder of the world" because interest earns interest, creating exponential rather than linear growth over time.

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