please answe follow questionsRequired information

$[$The following information applies to the questions displayed below.$]$

The following data pertain to British Isles Aggregates Company, a producer of sand, gravel, and cement, for the year just

ended.

Sales revenue

Cost of goods sold

Operating expenses

Average invested capital

$7,000,000$

$2,660,000$

$3,920,000$

$1,400,000$

$$ denotes the British pound sterling, the national monetary unit of Great Britain.

Required:

Compute the company's sales margin, capital turnover, and ROI.