Martinez Corp. uses a periodic inventory system. Its records show the following for the month of May, in which 72 units were sold.

Date		Explanation		Units		Unit Cost		Total Cost
May 1		Inventory		31		$9		$279
15		Purchase		25		10		250
24		Purchase		37		11		407
		Total		93				$936

Calculate the ending inventory at May 31 using the FIFO, LIFO and average-cost methods. (Round answers to 0 decimal places, e.g. 125.)