Which inventory costing method results in the most precise assignment of costs to Cost of Goods Sold under both perpetual and periodic inventory systems?

• A. First-In, First-Out (FIFO) Method
• B. Specific Identification Method
• C. Last-In, First-Out (LIFO) Method
• D. Weighted Average Cost Method

Answer: (B)

Verified step by step guidance

1. Understand the question: The problem is asking which inventory costing method provides the most precise assignment of costs to Cost of Goods Sold (COGS) under both perpetual and periodic inventory systems.
2. Review the inventory costing methods: The four methods mentioned are Specific Identification, FIFO (First-In, First-Out), LIFO (Last-In, First-Out), and Weighted Average Cost. Each method has its own approach to assigning costs to inventory and COGS.
3. Focus on the Specific Identification Method: This method tracks the actual cost of each specific item sold and remaining in inventory. It is the most precise because it directly matches the cost of the specific item to the revenue generated from its sale.
4. Compare with other methods: FIFO assumes the oldest inventory is sold first, LIFO assumes the newest inventory is sold first, and Weighted Average Cost averages the cost of all inventory items. These methods use assumptions or averages, which are less precise than tracking individual items.
5. Conclude that the Specific Identification Method is the most precise because it does not rely on assumptions or averages, but instead assigns the exact cost of each item to COGS.