The 72 Rule of Thumb
72 divided by the annual interest rate as a percentage is approximately equal to the number years until an investment doubles in value.
Example: At 8% interest, your money will double in approximately 9 years (72/8 = 9).
Short, sweet, to the point ... tips, tools, and rules of thumb for innovators and entrepreneurs!
72 divided by the annual interest rate as a percentage is approximately equal to the number years until an investment doubles in value.
Example: At 8% interest, your money will double in approximately 9 years (72/8 = 9).
