Determining missing items in return on investment computation One item is omitted from each of the following computations of the return on investment: Return on Investment Profit Margin Investment Turnover 15 % = 10 % (a) (b) 28 % X 0.75 33 % (c) 1.5 12 % 20 % X (d) (e) 15 % X 2.2 Determine the missing items identified by the letters as shown above. If required, round your answers to two decimal places. (a) (b) % (c) % B (d) (e) %