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Lewis Incorporated and Clark Enterprises report the following amounts for the year. Inventory (beginning) Inventory (ending) Purchases Purchase returns Lewis $ 19,000 13,000 188,000 10,000 Clark $ 45,000 55,000 190,000 55,000 Required 1. Calculate cost of goods sold for each company.. 2. Calculate the inventory turnover ratio for each company. 3. Calculate the average days in inventory for each company. 4. Explain which company appears to be managing its inventory more efficiently.