Return on investment is often expressed as follows: Controllable margin Controllable margin Salies ROI = Average operating assets Sales Average operating assets (b1) Comparative data on three companies operating in the same industry follow. The minimum required ROI is 10% for all three companies. Determine the missing amounts. (Round asset turnover of Company 8 and return on investment of Company C to 1 decimal place, e.g. 15.2 or 15.2%% and all other answers to O decimal places, eg. 152. Enter negative amounts using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45)) Company A Company B Company C Sales $1,556,000 $753,400 (a) Net operating Income $171,160 $150,680 Average operating assets $778,000 $5,049. Profit % margin Assets turnover Return on Investment 20 % () Residual Income S