Response to the following problem:
Use the following information for Ryder Co. to compute inventory turnover for 2011 and 2010, and its days' sales in inventory at December 31, 2011 and 2010. (Round answers to one decimal.) Comment on Ryder's efficiency in using its assets to increase sales from 2010 to 2011.
2011 2010 2009
Cost of goods sold . . . . . . . . . $643,825 $426,650 $391,300
Ending inventory . . . . . . . . . . . 96,400 86,750 91,500