Answer:
A)
ending inventory under FIFO method = $2,749
ending inventory under LIFO method = $2,667
ending inventory under the average-cost method = $2,713
B)
COGS under FIFO method = $9,709
COGS under LIFO method = $9,791
COGS under the average-cost method = $9,745
Explanation:
Novak Corp. inventory during September
sept. 1 inventory 11 $97 $1,067
sept. 12 purchases 44 $100 $4,400
sept. 19 purchases 47 $101 $4,747
sept. 26 purchases 22 $102 $2,244
totals 124 $12,458
If Novak sold 97 units during September, ending inventory will be 27 units and their value under FIFO method = (22 x $102) + (5 x $101) = $2,244 + $505 = $2,749. COGS under FIFO method = $12,458 - $2,749 = $9,709
If Novak sold 97 units during September, ending inventory will be 27 units and their value under LIFO method = (11 x $97) + (16 x $100) = $1,067 + $1,600 = $2,667. COGS under LIFO method = $12,458 - $2,667 = $9,791
If Novak sold 97 units during September, ending inventory will be 27 units and their value under the average-cost method = ($12,458 / 124 units) x 27 units = $2,712.63 ≈ $2,713. COGS under the average-cost method = $12,458 - $2,713 = $9,745