Periodic Inventory by Three Methods; Cost of Merchandise Sold

There are 80 units of the item in the physical inventory at December 31. The periodic inventory system is used.

The units of an item available for sale during the year were as follows:

Jan. 1	Inventory	40 units @ $130
Mar. 10	Purchase	60 units @ $142
Aug. 30	Purchase	30 units @ $146
Dec. 12	Purchase	70 units @ $148

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

Please show all steps. Thanks