Return on investment is often expressed as follows: Controllable margin Controllable margin Sales ROI X Average operating assets Average operating assets Sales 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 tumover of Company B and return on investment of Company C to 1 decimal place) Company A Company B Company Sales $1.410,000 $725,600 (a) 5 Net operating Income b $ $169 200 $137.864 Average operating assets Id $ $705.000 $5.466.000 Proht (d) le) 0.5 X margin Assets turnover Return on Investment ch $ 19.50 Residual Income 05 05 0 $