Here’s how the Rule of 72 works: Divide 72 by your expected annual interest rate (as a percentage, not a decimal). The answer is roughly the number of years it will take for your money to double. For ...
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The Rule of 72 is an easy way to calculate how long it will take your investment to double in value. Here's how it works.
It seems the 4% rule is now the 4.7% rule. Three decades after financial planner William Bengen came up with a simple yet ...