What is the cost of goods sold?

		Debit	Credit
2-May	Inventory	4,200
	Accounts Payable		4,200
	(purchased on account terms 2/10, n/30)
3-May	Inventory	290
	Cash		290
	(to record payment of freight cost)
5-May	Accounts Payable	350
	Inventory		350
	(to record purchase return)
10-May	Accounts Payable	3,850
	Inventory		77
	Cash		3,773
	(to record payment made)
30-May	Receivable	4,900
	Sales Revenue		4,900
	(to record sales of inventory)
30-May	Cost of Goods Sold
	Inventory