Jan. 1	Inventory	50 units @ $126
Mar. 10	Purchase	40 units @ $138
Aug. 30	Purchase	30 units @ $144
Dec. 12	Purchase	80 units @ $150

There are 40 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost and the cost of merchandise sold by three methods. Round interim calculations to one decimal and final answers to the nearest whole dollar.

Cost of Merchandise Inventory and Cost of Merchandise Sold
Inventory Method	Merchandise Inventory	Merchandise Sold
First-in, first-out (FIFO)	$	$
Last-in, first-out (LIFO)
Weighted average cost