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 $ $18,700,000$

Net operating income $ $4,600,000$

Average operating assets $ $35,400,000$

Required:

Compute the margin.

Note: Round your answer to $2$ decimal places.

Compute the turnover.

Note: Round your answer to $2$ decimal places.

Compute the return on investment $($ROI$).$

Note: Round your intermediate calculations and final answer to $2$ decimal places.