Inventory
INVENTORY CONCEPTS
Definition of Inventory
Inventory refers to the goods and materials a business holds for the purpose of resale.
It is considered an asset in accounting.
Accountability in Purchasing and Selling
When inventory is purchased, it is recorded as an asset on the balance sheet.
Upon selling inventory, it is transferred to an expense account known as Cost of Goods Sold (COGS) to reflect the cost associated with the sold product.
VALUATION OF INVENTORY
Value of Inventory
The value of inventory encompasses all incurred costs that are necessary to make it available for sale, which may include:
Purchase price
Freight-in (shipping costs)
Handling and storage fees
Inventory Equation
The accounting formula to determine ending inventory is:
ext{Ending Inventory} = ext{Beginning Balance of Inventory} + ext{Purchases} - ext{Purchase Returns} - ext{Purchase Discounts} + ext{Freight-in} - ext{COGS}Components:
Beginning Balance of Inventory: The inventory level at the start of the reporting period, which is considered permanent.
Purchases: New inventory acquired during the period.
Purchase Returns/Discounts: Reductions in purchase costs due to returns of goods or discounts.
Freight-in: Costs associated with transporting inventory to the location.
Cost of Goods Sold (COGS): The total cost of inventory that has been sold during the period.
INVENTORY VALUATION METHODS
Methods of Inventory Valuation
There are four primary methods to account for the cost of goods sold:
Specific Identification: Tracks the actual cost of each specific item sold.
FIFO (First-In, First-Out): Assumes that the oldest inventory items are sold first.
LIFO (Last-In, First-Out): Assumes that the most recently acquired inventory items are sold first.
Weighted Average Cost: Averages the cost of all inventory items for valuation.
It is important to note that these methods affect financial statements differently, though they do not necessarily reflect the physical flow of goods.
PRACTICE PROBLEM DATA
Summary of Inventory Transactions
Date
Quantity
Price per Item
Total Cost
Beginning
80
$2.00
$160
1/2/10
100
$2.10
$210
1/14/10
150
$2.50
$375
2/6/10
200
$2.00
$400
Totals
530
$1145
FIFO METHOD CALCULATION
Application of FIFO Method
Cost of Goods Sold (COGS) Calculation for Sold Units on February 14th
Sold 200 units comprising:
80 units at $2.00 => $160
100 units at $2.10 => $210
20 units at $2.50 => $50
Total COGS = 160 + 210 + 50 = 420
Ending Inventory Calculation Post-Sale
Remaining Inventory after Sales (as of February 14th):
130 units at $2.50 => $325
200 units at $2.00 => $400
Total Remaining Inventory = 325 + 400 = 725
Integrity of Inventory Equation
Beginning Inventory + Purchases = COGS + Ending Inventory
1145 = 420 + 725
LIFO METHOD CALCULATION
Application of LIFO Method
Cost of Goods Sold (COGS) Calculation for Sold Units on February 14th
Sold 200 units, using the following:
200 units at $2.00 => $400
Total COGS = 400
Ending Inventory Calculation Post-Sale
Remaining Inventory after Sales (as of February 14th):
80 units at $2.00 => $160
100 units at $2.10 => $210
150 units at $2.50 => $375
Total Remaining Inventory = 160 + 210 + 375 = 745
Integrity of Inventory Equation
Beginning Inventory + Purchases = COGS + Ending Inventory
1145 = 400 + 745
WEIGHTED AVERAGE METHOD CALCULATION
Average Cost Calculation
Total Cost = 1145
Total Units = 530
Average Cost per Unit = rac{ ext{Total Cost}}{ ext{Total Units}} = rac{1145}{530} = 2.16
COGS and Ending Inventory Calculation for Sold Units on February 14th
Cost of Goods Sold:
Sold 200 units at an average cost of $2.16 => 200 imes 2.16 = 432
Ending Inventory Calculation Post-Sale
Remaining Inventory after Sales (rounded to nearest whole dollar):
330 units remaining => 330 imes 2.16 = 713
Integrity of Inventory Equation
Beginning Inventory + Purchases = COGS + Ending Inventory
1145 = 432 + 713
COMPARISON OF INVENTORY METHODS
Cost of Goods Sold and Ending Inventory Summary as of February 14th
Method
COGS
Ending Inventory
FIFO
$420
$725
LIFO
$400
$745
Average
$432
$713
IMPACT OF RISING PRICES ON INVENTORY METHODS
Effect of Inventory Methods on Financial Outcomes
As prices rise, the method of inventory valuation used can significantly affect the reported ending inventory and net income:
FIFO Analysis:
Results in Higher Inventory Value
Results in Higher Net Income
LIFO Analysis:
Results in Lower Inventory Value
Results in Lower Net Income
This highlights how inventory accounting methods can influence financial statements, with FIFO providing a favorable view of profitability as prices rise, while LIFO may reflect a more conservative profit picture due to reduced taxable income derived from higher COGS.