Required: Firm A has a margin of 11%, sales of $540,000, and ROI of 17%. Calculate the firm's average total assets. Firm B has net income of $74,000, asset turnover of 1.30, and average total assets of $880,000. Calculate the firm's sales, margin, and ROI. Firm C has net income of $134,000, asset turnover of 2.01, and ROI of 23.60%. Calculate the firm's margin, sales, and average total assets. Complete this question by entering your answers in the tabs below. Required ARequired BRequired C Firm B has net income of $74,000, asset turnover of 1.30, and average total assets of $880,000. Calculate the firm's sales, margin, and ROI. Note: Round "Margin" and "ROI" answers to 1 decimal place. Sales Margin % ROI % Required ARequired BRequired C Firm C has net income of $134,000, asset turnover of 2.01, and ROI of 23.60%. Calculate the firm's margin, sales, and average total assets. Note: Round "Margin" answer to 1 decimal place and use the rounded answer for the subsequent computations. Margin % Sales Average total assets