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Analyzing Inventory for Two Retail Grocery Companies Carrefour Group (headquartered in Boulogne-Billancourt, France) and Tesco PLC (headquartered in Welwyn Garden City, UK) compete head-to-head in the grocery space in the UK, Ireland, Central Europe, and North Africa. The following information comes from their 2018 annual reports. Required a. Calculate gross profit margin for each year for both companies. Note: Round percentage to one decimal place (for example, enter 6.7% for 6.6555% ). b. Determine the common-size inventory for each year for both companies. Note: Round percentage to one decimal place (for example, enter 6.7% for 6.6555% ). c. Compute inventory turnover and days average inventory outstanding for 2018. Note: Do not round until your final answer; round your final answer to one decimal place (for example, enter 6.8 for 6.77555 )