The beginning inventory and purchases of an item for the period were as follows:

Beginning inventory		6 units at $70 each
First purchase		10 units at $75 each
Second purchase		18 units at $80 each
Third purchase		10 units at $90 each

The company uses the periodic system, and there were 15 units in the inventory at the end of the period. Determine the cost of the 15 units in the inventory by each of the following methods, presenting details of your computations: (a) first-in, first-out; (b) last-in, first-out; (c) average cost. Round your final answer to two decimal places.

a. First-in, first-out	$
b. Last-in, first-out	$
c. Average cost	$