Based on the following data for the current year, what is the number of days' sales in inventory? Sales on account during year $1,204,500 Cost of goods sold during year 657,000 Accounts receivable, beginning of year 75,000 Accounts receivable, end of year 85,000 Inventory, beginning of year 85,600 Inventory, end of year 98,600 a.7.5 b.51.2 c.6.5 d.44.4