Answer:
$2040
Explanation:
FIFO under the perpetual inventory system is one in which the sale or purchase of inventory is immediately updated in the inventory account such that the true position of inventory available per time is known.
FIFO is first in first out which means that inventory purchased first are sold first.
Given;
Units Unit Cost Total Cost Units Sold
Beginning Inventory 30 $28 $ 840
Sale No. 1 20
Purchase No. 1 50 $40 $2,000
Sale No. 2 40
Purchase No. 2 20 $44 $880
Totals 100 $3,720 60
Cost of goods sold = $28 * 20 + $28 * 10 + $40 * 30
= $560 + $280 + $1200
= $2040