Agora Co. recorded the following inventory information during the month of March:
	# Units	Unit Cost	Total Cost	# Units, Ending Bal
Balance on 3/1	2,000	$2	$2,000	2,000
Purchased on 3/8	1,200	5	$3,600	3,200
Sold on 3/23	1,800			1,400
Purchased on 3/28	800	5	$4,000	2,200
What amount should Rose report as inventory on March 31 using the periodic LIFO method for recording inventory?

my wrong Answer:

10,400

formula/clue given:

2000*{C1} + 200*{C2}