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 13.2% 696 x 10% 1.80 (c) x 5% 10.5% 1.50 15% 12% 1.10 Determine the missing items identified by the letters as shown above. If required, round your answers to two decimal places