Causwell Company began 2021 with 10,000 units of inventory on hand. The cost of each unit was $5.00. During 2021, an additional 30,000 units were purchased at a single unit cost, and 20,000 units remained on hand at the end of 2021 (20,000 units therefore were sold during 2021). Causwell uses a periodic inventory system. Cost of goods sold for 2021, applying the average cost method, is $115,000. The company is interested in determining what cost of goods sold would have been if the FIFO or LIFO methods were used. Required:
1. Determine the cost of goods sold for 2021 using the FIFO method. [Hint: Determine the cost per unit of 2021 purchases.]
2. Determine the cost of goods sold for 2021 using the LIFO method.

1. $110000.

2. $120000

Explanation:

First, we calculate the sold units which will be:

= Opening inventory + Purchase - Ending inventory

= 10000 + 30000 - 20000.

= 20000

Then, the cost of stock per unit will be:

= $115000/20000

= $5.75

The total cost of the total stock available will be:

= 40000 × $5.75

= $230,000

Cost of purchase stock will be:

= Total cost of stock - Cost of beginning inventory

= $230000 - $50000

= $180000

Then, cos per unit of purchased stock will be:

= $180000 / 30000

= $6

1 Determine the cost of goods sold for 2021 using the FIFO method.

Cost from begining inventory = 10000 × 5 = 50000

Add: Cost from purchase inventory = 10000 × 6 = 60000

Cost of goods sold under FIFO = 110000

2. Determine the cost of goods sold for 2021 using the LIFO method.

This will be:

= 20000 × 6

= 120000

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