Exercise 3-11 (Algo) ROI analysis using the DuPont model LO 3 Required: a. Firm A has a margin of 12%, sales of $590,000, and ROI of 19%. Calculate the firm's average total assets. b. Firm B has net income of $72,000, turnover of 1.20, and average total assets of $850,000. Calculate the firm's sales, margin, and ROI. c. Firm C has net income of $134,000, turnover of 1.91, and ROI of 23.70%. Calculate the firm's margin, sales, and average total assets. Complete this question by entering your answers in the tabs below. Required A Required B Required C Firm C has net income of $134,000, turnover of 1.91, and ROI of 23.70%. Calculate the firm's margin, sales, and average total assets. (Round "Margin" answer to 1 decimal place and use the rounded answer for the subsequent computations.) Margin Sales Average total assets %6 < Required B Required C >