Problem 10.10 Calculating Reol Returns and Risk Premiums [LO 1] You've observed the following refums on Pine Computer's stock over the past five years -261 percent, 14.4 percent, 31.8 percent, 2.7 percent, and 217 percent. The average inflation rate over this period was 327 percent and the average T-bill rate over the period was 43 percent. a. What was the awerage real return on the stock? Note: Do not round intermedlate calculetions and enter your answer os o percent rounded to 2 decimol places, e.9.,32.16. b. What was the average nominal risk premiun on the stock? Note: Do not round intermediote calculatlons end enter your answer as a percent rounded to 2 decimal ploces, e.g., 3216