You purchase 100 shares of stock for $50 a share. The stock pays a $3 per share dividend at year-end. a. What is the rate of return on your investment if the end-of-year stock price is (i) $47: (ii) $50: (iii) $55? (Leave no cells blank - be certain to enter "0" wherever required. Enter your answers as a whole percent.) b. What is your real (inflation-adjusted) rate of return if the inflation rate is 5%? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places. Negative amounts should be indicated by a minus sign.)