Exercise 11-1 (Algo) Compute the Return on Investment (ROI) [LO11-1] 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 Required: 1. Compute the margin. $ 18,400,000 $ 5,700,000 $ 36,300,000 Note: Round your answer to 2 decimal places. 2. Compute the turnover. Note: Round your answer to 2 decimal places. 3. Compute the return on investment (ROI). Note: Round your intermediate calculations and final answer to 2 decimal places.