10.6. The PM Computer Company makes build-to-order (BTO) computers at its distribution center year round. The following table shows the average value (in $ millions) of component parts, workin-process, and finished computers at the DC for the past four years. a. Determine the number of inventory turns and the days of supply for each year. b. As the company has grown, does it appear that the company's supply chain performance has improved? Explain your