The following is the inventory for the year for Brown Lumber:

Date	Units	Cost per unit	Total Cost
Beginning inventory, Jan. 1	500	$10	$ 5,000
Purchase, March 15	2,500	$11	27,500
Purchase, September 20	1,500	$13	19,500
Purchase, December 10	500	$14	7,000
Total Units Available	5,000		$59,000

Using the average cost pricing method, Brown Lumber determined that the dollar value of the ending inventory was $7,316. How many actual units of plywood are included in this ending inventory? (Round the average cost per unit to the nearest cent)