The accounting records of Metlock, Inc. show the following data.

Beginning inventory		4,000 units at	$4
Purchases		8,500 units at	$6
Sales		10,700 units at	$9

Determine cost of goods sold during the period under a periodic inventory system using the FIFO method, the LIFO method, and the average-cost method. (Round answers to 0 decimal places, e.g. 125.)

Cost of goods sold

FIFO___________ LIFO____________ Average-cost______________