**The Rule of 72**

The Rule of 72, as pertaining to a billboard lease or lump sum payment, allows you to calculate the amount of time it will take an investment to double in size if the interest rate of return is known.

**72 / Your Interest Rate = # Of Years To Double**

For Example:

72 / 7.2% Return = 10 Years

For Example:

72 / 7.2% Return = 10 Years

**72 / 14.4% Return = 5 Years**

As you can see, the lower the interest rate of return, the longer it takes to double your investment. A lump sum payment would protect you against loss of income from inflation as well as put money in your pocket today!