Cullumber Corporation had the following items in inventory as at December 31, 2020:

Item No.			Quantity			Unit Cost			NRV
	A1		140			$3.00			$3.10
	B4		120			1.50			0.90
	C2		190			9.20			10.40
	D3		130			6.60			6.10

Assume that Cullumber uses a periodic inventory system, and that none of the inventory items can be grouped together for accounting purposes. The opening inventory on January 1, 2020, was $3,200 in total.