Please explain steps, thank you

Ten annual returns are listed in the following table: - 19.9% 16.4% 18.4% - 49.8% 43.5% 1.6% -16.4% 45.8% 44.8% -3.6% a. What is the arithmetic average return over the 10-year period? b. What is the geometric average return over the 10-year period? c. If you invested $100 at the beginning, how much would you have at the end? a. What is the arithmetic average return over the 10-year period? The arithmetic average return over the 10-year period is . (Round to four decimal places.)