Alyeska Services Company, a division of a major oil company, provides various services to the operators of the North Slope oil field Alaska. Data concerning the most recent year appear below: 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.) Juniper Design Limited of Manchester, England, provides design services to residential developers. Last year, the company had net operating income of $500,000 on sales of $1,600,000. The company's average operating assets for the year were $1,800,000 and its minimum required rate of return was 13%. Required: Compute the company's residual income for the year