1500 Swifty's Place recorded the following data:

			Units
Date			Received	Sold	On Hand		Unit Cost
1/1 Inventory					500		$2.10
1/8 Purchase			1000		1500		3.00
1/12 Sold				1160	340

The weighted-average unit cost of the inventory at January 31 is:

$3.40

$2.70

$2.10

$2.60