The 2013 financial statements of Walgreen Co reported the following information (in millions): The footnotes to the 2013 financial statements of CVS Caremark (a dose competitor of Walgreen's) reported that the company uses the FIFO method of accounting for inventories Financial statements reported the following (in millions): Compare the two companies' days-inventory-outstanding ratios for 2013. To do this properly, you will convert 016 companies' cost of sales and inventories to a common inventory costing method. Which company is more efficient with its inventory