Fill in the missing information. (Round the Turnover answers to 1 decimal place, and all other answers to the nearest whole number. Company A B C Sales $ 4,000,000 $ 1,500,000 $ Net operating income $ 560,000 $ 210,000 $ Average operating assets $ 2,000,000 $ $ 3,000,000 Margin % % 3.5 % Turnover 2.0 Return on investment (ROI) % 7 % %