a. Calculate gross profit margin for each year for both companies. b. Determine the common-size inventory for each year for both companies. c. Compute inventory turnover and days average inventory outstanding for 2018. d. Based on the metrics in parts a, b, and c, how do we assess the two companies' inventory management? Sales..... Cost of sales... Gross profit. ... Inventory.. Total assets Carrefour Group in millions 2018 76,000 60,850 15,150 6,135 47,378 2017 78,315 62,311 16,004 6,690 47,813 Tesco PLC in millions 2018 2017 57,491 55,917 54,141 53,015 3,350 2,902 2,263 44,862 2,301 45,853