Requirement $1.$ Compute cost of goods sold and ending inventory, using each of the following four inventory methods:

Begin by entering the number of units sold and number of units in ending inventory. Then calculate cost of goods sold and ending inventory using $($a$)$ specific identification, then $($b$)$

average cost, then $($c$)$ FIFO, and finally $($d$)$ LIFO. $($Round the average cost per unit to the nearest cent. Round all final answers to the nearest whole dollar.$)$

Number

Cost of goods sold

of units

Ending inventory