Exercise 6-15 (Algo) Calculate cost of goods sold, the inventory turnover ratio, and average days in inventory (LO6-2, 6-7) Lewis Incorporated and Clark Enterprises report the following amounts for the year. Lewis Clark Inventory (beginning) $34,000 $60,000 Inventory (ending) 28,000 70,000 Purchases 391,000 223,000 Purchase returns 25,000 70,000 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 inven