Exercise 11-1 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 $18,800,000 $ 6,400,000 $35,400,000 Required 1. Compute the margin for Alyeska Services Company. (Round your answer to 2 decimal places.) argin 2. Compute the turnover for Alyeska Services Company. (Round your answer to 2 decimal places.) urnover