Based on the following data for the current year, what is the inventory turnover? Net sales on account during year $500,000 Cost of merchandise sold during year 400,000 Accounts receivable, beginning of year 45,000 Accounts receivable, end of year 35,000 Inventory, beginning of year 125,000 Inventory, end of year 75,000 5.0 4.0 8.3 0 3.7