Oahu Kiki tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method at the end of each month, as if it uses a periodic inventory system. Assume Oahu Kikis records show the following for the month of January. Sales totaled 290 units.

	Date	Units			Unit Cost			Total Cost
Beginning Inventory	January 1		240		$	70		$	16,800
Purchase	January 15		450			80			36,000
Purchase	January 24		210			100			21,000

Required:

1.	Calculate the number and cost of goods available for sale.

Number of Goods Available for Sale	900	units
Cost of Goods Available for Sale	73800

2.	Calculate the number of units in ending inventory.

Ending Inventory

units

3.	Calculate the cost of ending inventory and cost of goods sold using the (a) FIFO, (b) LIFO, and (c) weighted average cost methods.

	Cost of Ending Inventory	Cost of Goods Sold
FIFO
LIFO
Weighted Average Cost