Compute the Return on Investment (ROI) [LO1]

Tundra 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $18,000,000 Net operating income . . . . . . . . . . . . . . . . . $5,400,000 Average operating assets . . . . . . . . . . . . . . $36,000,000 Required:
1. Compute t he m argin f or Tundra S ervices C ompany.
2. Compute the turnover for Tundra Services Company.
3. Compute the return on investment (ROI) for Tundra Services Company.