Perpetual Inventory Using FIFO

Beginning inventory, purchases, and sales for Item PK95 are as follows:

January 1		Inventory	64 units @ $18
9		Sale	51 units
13		Purchase	45 units @ $21
28		Sale	18 units

Assuming a perpetual inventory system and using the first-in, first-out (FIFO) method, determine (a) the cost of merchandise sold on January 28 and (b) the inventory on January 31.

a. Cost of merchandise sold on January 28	$
b. Inventory on January 31	$