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Solution
cost of goods available = Total beginning inventory cost + total purchases cost
= $5000 + [22000 + 7200 + 12400]
= $5000 + 41600
= $46600
Ending inventory = Total units available for sale - sold units
= 820 - 580
= 240 units
a.) FIFO:
Cost of goods sold = 100 units from beginning inventory $50 = 5000
400 units from Mar 5 inventory $55 = 22000
80 units from Mar18 inventory $60 = 4800
Total cost of goods sold = 31800
Ending inventory = cost of goods available - Total cost of goods sold
= $46600 - 31800
= $14800
b.) LIFO
Cost of goods sold = 200 units from Mar 25 inventory $62=12400
120 units from Mar 18 inventory $60 =7200
260 units from Mar 5 inventory $55 =14300
Total cost of goods sold = 33900
Ending inventory = cost of goods available - Total cost of goods sold
= $46600 - 33900
= $12700
c.) Weighted average
Weighted Average cost = cost of goods available / total units of goods available
= $46600 / 820
= 56.83
Cost of goods sold = [420 units * $56.83 + 160 units * $56.83]
= $32961.4
Ending inventory = cost of goods available - Total cost of goods sold
= 46600 - 32961.4
= $13638.6
d.) Specific identification :
Cost of goods sold = 80 units from beginning units @ $50 = 4000
=340 units from Mar. 5 units @ $55 = 18700
420 units = $22700
= 40 units from Mar. 18 units @ $60 = 2400
= 120 units from Mar. 25 units @62 = 7440
160 units 9840
Total cost of goods sold =32540
Ending inventory = cost of goods available - Total cost of goods sold
= $46600 - 32540
= $14060
Average cost:

