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rule of 72

(Dictionary)

Author:
Harold Averkamp, CPA, MBA

Definition

A technique for estimating the number of years or the interest rate necessary to double your money. Divide 72 by the interest rate and you will have the approximate number of years needed to double your money. If your money earns 4%, your money will double in 18 years (72 divided by 4). If you earn 8%, your money will double in 9 years (72 divided by 8).

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About the Author

Harold Averkamp

For the past 52 years, Harold Averkamp (CPA, MBA) has
worked as an accounting supervisor, manager, consultant, university instructor, and innovator in teaching accounting online. He is the sole author of all the materials on AccountingCoach.com.

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