Final answer:
To compute the Cost of Goods Sold using the FIFO method, the 170 units sold will come from the earliest purchases: 120 units from the January purchase at $20 each and 50 units from the February purchase at $30 each, totaling $3,900.
Step-by-step explanation:
To calculate the Cost of Goods Sold (COGS) using the First-In, First-Out (FIFO) inventory costing method, we need to track the inventory that was sold based on the oldest prices first. Since the company uses a perpetual inventory system, this calculation occurs with every sale.
The company purchased 120 units at $20 each in January and 170 units at $30 each in February. When it sells 170 units, the first 120 units sold will be accounted at the January purchase price, and the next 50 units will be accounted at the February purchase price:
- 120 units x $20/unit = $2,400 from January's inventory
- 50 units x $30/unit = $1,500 from February's inventory
Therefore, the total COGS for selling 170 units is $2,400 + $1,500 = $3,900.