Required: a. Firm D has net income of $26,500, sales of $970,000, and average total assets of $380,000. Calculate the firm's margin, turnover, and ROI. b. Firm E has net income of $69,000, sales of $1,150,000, and ROI of 13 %. Calculate the firm's turnover and average total assets. c. Firm F has ROI of 12.60%, average total assets of $1,864,500, and turnover of 1.40. Calculate the firm's sales, margin, and net income. Complete this question by entering your answers in the tabs below. Required A Required B Required C Firm D has net income of $26,500, sales of $970,000, and average total assets of $380,000. Calculate the firm's margin, turnover, and ROI. Note: Do not round intermediate calculations. Round your answers to 1 decimal place. Margin Turnover ROI % % Required B >