The Rule of 72 is a shortcut or rule of thumb used to estimate the number of years required to double your money at a given annual rate of return and vice versa.
The rule of 72 is a shortcut investors can use to determine how long it will take their investment to double based on a fixed annual rate of return. To use the rule of 72, divide 72 by the fixed rate ...
Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. A loan constant is a percentage that shows the annual debt service on a loan compared to its ...