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 $ 7,500,wee $ 600,000 $ 5,000,000 Required: 1. Compute the margin. 2. Compute the turnover. (Round your answer to 1 decimal place.) 3. Compute the return on Investment (ROI). (Do not round Intermediate calculations.) 96 1. Margin 2. Turnover 3. ROI 96