EXERCISE 12-1 Compute the Return on investment (ROI) [LO 12-1] 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 $7,500,000 $600,000 $5,000,000 Required: 1. Compute the margin for Alyeska Services Company. 2. Compute the turnover for Alyeska Services Company. 3. Compute the return on investment (ROI) for Alyeska Services Company