Three identical units of merchandise were purchased during March, as shown:

		Steele Plate	Units	Cost
Mar. 3		Purchase	1	$830
10		Purchase	1	840
19		Purchase	1	880
Total			3	$2,550

Assume that one unit is sold on March 23 for $1,125. Determine the gross profit for March and ending inventory on March 31 using (a) FIFO, (b) LIFO, and (c) average cost methods.

	Gross Profit	Ending Inventory
a. First-in, first-out (FIFO)	$	$
b. Last-in, first-out (LIFO)	$	$
c. Average cost	$	$