The general merchandise retail industry has a number of segments represented by the following companies: Company NameMerchandise Concept
Costco Wholesale Corporation (COST)Membership warehouse
Wal-Mart Stores, Inc. (WMT)Discount general merchandise
Nordstrom, Inc. (JWN)Fashion department store
For a recent year, the following cost of goods sold and beginning and ending inventories are provided from corporate annual reports (in millions) for these three companies:

ParticularsCostcoWal-MartNordstrom< br /> Cost of goods sold$102,901$360,984$9,168
Beginning inventory$8,908$45,141$1,733
Ending inventory$8,969$44,469$1,945
a. Determine the inventory turnover ratio for all three companies.

b. Determine the number of days' sales in inventory for all three companies.