Martin Inc. is a wholesaler of office supplies. The activity for supply number 47519 during October is shown below:

Date	Balance/Transaction	Units	Cost
October 1	Inventory	2,000	$10.00
October 7	Purchase	3,000	11.00
October 12	Sales	3,600
October 21	Purchase	4,000	12.00
October 22	Sales	3,800
October 29	Purchase	2,000	13.00

If Martin Inc. uses a periodic LIFO cost inventory system, the ending inventory of supply number 47519 at October 31 is reported as (round the average cost to the nearest cent):