A stock has alternated between earning a +0.02 rate of return (2%) and a -0.04 rate of return (loss) each year for 6 years. What was the total rate of return over these six years?

You have invested in a stock portfolio that has earned returns of 1.5%, 2.625%, 6%, -0.45%, and -8.1% in the past 5 years. What is the difference between the compounded rate of return and the cumulative (added) rate of return?