Amazon.com reported the following amounts in its financial statements (in millions):

1. Determine the inventory turnover ratio and average days to sell inventory for 2010 and 2009. Round to one decimal place.
2. Comment on any changes in these measures and compare the inventory turnover at Amazon.com to inventory turnover at Barnes & Noble, Inc., where inventory turned over 3.2 times during 2010 (114.1 days to sell). Based on your own experience, what's the key difference between Amazon.com and Barnes & Noble that leads one company's results to be the picture of efficiency and the other to seem like a library?

2010 2009 $24,509 18,978 1,399 2,171 Net Sales $34,204 Cost of Goods Sold Beginning Inventory Ending Inventory 26,561 2,171 3,202