Alyeska Services Company, a division of a major oil company, provides various services to the operators of he North Slope oil field in Alaska. Data concerning the most recent year appear below: Required: 1. Compute the margin. 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