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Inventory Valuation: How Companies Can Calculate It

referred to as LIFO – or Last In, First Out. This means that businesses sell what they’ve produced first, then move on to the older inventory. If any inventory is left at the end of the accounting time-frame, it’s accounted for accordingly. Assuming the same 500 widgets were sold in the particular accounting period, the time-frame’s COGS would be $2.50 per widget, with the 500 widgets left over in inventory valued at the $2 per widget cost.  

One important caveat to this type of valuation is with regard to inventory that’s perishable or becomes obsolete quickly (cell phones, televisions, etc.). It is not an effective method because the product will either spoil or become worth next to nothing due to highly competitive industries. For this approach, using the most recently produced goods first would lend their COGS basis to be higher. In one respect, the higher COGS basis can lower profits, but can also offset taxes due to the same effect. The third type of inventory valuation is referred to as Average Cost. This method is a way to blend LIFO and FIFO, which takes the average of inventory across all production and storage timelines. This approach averages costs in proportion to the amount of widgets produced in each run, then calculates the mean cost to determine the ending inventory and COGS figures.

[(500 x $2) + (500 x $2.50)]/1,000 = ($1,000 + $1,250)/1,000 = $2,250/1,000 = $2.25

Therefore, the average cost for inventory using this method would be $2.25 per widget.

With different types of inventory valuation explained, there are considerations that businesses should be mindful for each approach. This can make a difference to those running the company and for potential investors and lenders contemplating investing in or loaning the company money.

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