plz show that how you got the answers

Comparative data on three companies in the same service industry are given below. Required: 2. Fill in the missing information. (Round the "Turnover" and "ROI" answers to 2 decimal places.) A Company $ 2,016,000 $ 322,560 $ 5,382,000 $ 699,660 $ 2,340,000 Sales Net operating income Average operating assets Margin Turnover Return on investment (ROI) % % $ 2,610,000 4 % 2.10 % % 11.20 %