Question: how to calculate average annual percentage return on initial investment?
Answer: To accurately compare returns relative to your investment, divide the return by the initial investment and multiply by 100 to figure the return as a percentage. For example, if you earned a return of $350 by investing $2,800, divide $350 by $2,800 to get 0.125. Then, multiply by 100 to get a return of 12.5 percent.