Given below is information about cost of goods sold, beginning and ending inventories, and average accounts payable for Years 3, 4 and 5:

Year 3 Year 4 Year 5 Cost of Goods Sold $1,895,400 $2,079,000 $2,250,000 Beginning Inventory $1,080,000 $540,000 $1,116,000 Ending Inventory $540,000 $1,116,000 $525,600 Sales $3,510,000 $3,960,000 $4,500000 Calculate for each year the following: (a) inventory turnover; (b) average number of days that inventory is on hand using 360 days in a year; and (c) gross profit margin rate up to two decimal place.

I AM TRAYING TO FIND OUT THE ((b) average number of days that inventory is on hand using 360 days in a year)