Beginning inventory, purchases and sales data for tennis rackets are as follows:

	Feb 3	Inventory		12 units	@	$15
	11	Purchase		13 units	@	$17
	14	Sale		18 units
	21	Purchase		9 units	@	$20
	25	Sale		10 units

Assuming the business maintains a perpetual inventory system, calculate the cost of merchandise sold and ending inventory under the following assumptions: a. First-in, first-out b. Last-in, first-out