Alyeska Services Company, a division of a major oil company provides various services to the operators of the North Slope oil field in Alaska. Data concerning the most recent year appear below: Sales Net operating income Average operating assets $ 18,100,000 $ 5,400,000 $ 36,300,000 Required: 1. Compute the margin. (Round your answer to 2 decimal places.) 2. Compute the turnover (Round your answer to 2 decimal places.) 3. Compute the return on investment (ROI). (Round your intermediate calculations and final answer to 2 decimal places.) 1. Margin 2. Tumover 3. ROI %