SBA Inc. use wood (raw material) for its production line #2.

Its beginning inventory on January 1st, 2020, is 100 units purchased at $320. SBA Inc. has purchased during 2020 the following items

• March1st : 250 units at $341
• July1st : 200 units at $343
• October 1st : 100 units at $346
• December 1st : 50 units at $347

SBA lnc.has sold during 2020 the following items:

• April 1 : 230 units
• September 1 : 120 units
• November 1 : 100 units

The ending inventory of the company is (in terms of quantity)

El (wood) = 100 + 250 + 200 + 100 + 50 230 120 100 = 250 units

Required : use the three costing methods for the valuation of inventory (weighted average, FIFO, and LIFO)