Question 1 (B-22.02 Margin, turnover, and ROI) Jef Doyle is evaluating results for three separate business segments under his control. Selected financial information for each segment follows: Sales Operating Income Average Assets Segment A $2,200,000 $150,000 $2,800,000 Segment B 3,700,000 480,000 6,200,000 Segment C 1,700,000 180,000 2,200,000 Calculate "margin," "turnover," and "return on investment" for the three segments