Based on the following data for the current year, what is the inventory turnover?

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 = $330,000

Accounts receivable, beginning of year = $45,000

Accounts receivable, end of year = $35,000

Inventory, beginning of year = $90,000

Inventory, end of year = $110,000