Return on investment is often expressed as follows: Controllable margin Controllable margin Sales ROI x Average operating assets Sales Average operating assets (51) 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 B 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, e.g. 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 $1,580,000 $725,800 (a) $ Net operating income (b) $173,800 $152,418 $ Average operating assets (c) $790,000 $ $5,387, Profit margin (d) % (e) % Assets turnover (f) (g) Return on investment (h) % 2.1 % (0) Residual income (1) (k) (1) $ $ $