Inventory turnover and number of days' sales in inventory Financial statement data for years ending December 31 for Tango Company follow: 2017 20Y6 Cost of goods sold $3,871,920 $4,079,970 Inventories: Beginning of year 773,800 737,300 End of year 839,500 773,800 Required a. Determine the inventory turnover for 20Y7 and 20Y6. Round to one decimal place. Inventory turnover 20Y7 20Y6 b. Determine the number of days' sales in inventory for 20Y7 and 20Y6. Use 365 days and round to one decimal place. Number of days' sales in inventory 20Y7 20Y6 days days c. Are the changes in inventory turnover and the number of days' sales in inventory from 20Y6 to 20Y7 favorable or unfavorable?