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:

A. Compute the margin for Alyeska Services Company.

B. Compute the turnover for Alyeska Services Company.

C. Compute the return on investment (ROI) for Alyeska Services Company.

Sales Net operating income Average operating assets $17,900,000 $ 5,000,000 $35,600,000