The following information is available from ABC co.'s inventory records for March 2020.

	# of units	unit costs	unit price
March 1, 2020	2,000	$10
Purchases on 3/5	3,000	11
Sales on 3/10	4,000		$20
Purchase on 3/15	6,000	12
Sales on 3/25	5,000		$20

Instructions: Compute the costs of goods sold for March 2020 using the following methods.

a) FIFO with perpetual inventory.

b) Weighted average. (Periodic system).

c) Moving average. (Perpetual system).

d) LIFO with periodic inventory.

e) LIFO with perpetual inventory.