
WAC per unit = COGS/units available for sale
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Related: What Is Inventory Accounting?: Definition and How It Works How to calculate weighted average costįollow the formula below to calculate weighted average cost: This helps businesses assign the average cost of production to specific products and continue to track activity related to changes in cost accurately. Weighted average cost is used when store owners need to perform a thorough physical count to verify inventory items available. Related: Inventory: Definition and Methods for Management When is weighted average cost used? The weighted average cost method helps businesses understand the overall cost associated with inventory and COGS. This may be confused with individual pricing later. It is common for businesses to pay different prices when ordering inventory because certain types of stock are not always available. The term 'weighted average cost' in accounting refers to the method of determining expenses associated with a business's cost of goods sold (COGS) and inventory. In this article, we discuss why weighted average cost is important and how to calculate it, plus see multiple examples.

This information helps employees and business owners make better buying decisions.
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Businesses who keep inventory in stock must understand the average cost of all inventory items in relation to individual costs and the total quantity of units being held.
