Brief Exercise 6-38 Inventory Analysis Callahan Company reported the following information for the current year: Net sales revenue $280,000 Cost of goods sold 120,000 Beginning inventory 5,000 Ending inventory 10,000 Required: Compute Callahan's (a) gross profit ratio, (b) inventory turnover ratio, and (c) average days to sell inventory. (Round all answers to two decimal places.) (a) Gross profit ratio % (b) Inventory turnover ratio (c) Average days to sell inventory days