72sääntö
The 72sääntö, or Rule of 72, is a simplified mathematical formula used to estimate the number of years it takes for an investment to double at a fixed annual rate of interest. The rule states that you divide 72 by the annual interest rate to find the approximate number of years for the investment to double. For example, if an investment earns an annual interest rate of 8%, it would take approximately 9 years (72 / 8 = 9) to double.
Conversely, if an investor wants their money to double in a specific timeframe, say 10 years, they
It's important to note that the Rule of 72 is an approximation. The accuracy of the rule