Three identical units of merchandise were purchased during July, as follows:

Date	Product T	Units	Cost
July 3	Purchase	1	$28
10	Purchase	1	31
24	Purchase	1	34
	Total	3	$93
	Average cost per unit		$31

Assume one unit sells on July 28 for $44.

Determine the gross profit, cost of goods sold, and ending inventory on July 31 using (a) first-in, first-out, (b) last-in, first-out, and (c) average cost flow methods.

	Gross Profit		Cost of Goods Sold		Ending Inventory
a. First-in, first-out	$		$
b. Last-in, first-out
c. Average	$