The Basis of the Valuation of Inventory (Cambridge (CIE) IGCSE Accounting)

Revision Note

Dan Finlay

Expertise

Maths Lead

Cost & Net Realisable Value

What is the cost and net realisable value of inventory?

  • The cost of inventory is the total cost to the business of obtaining goods

    • The purchase cost of the goods

    • Plus the cost for carriage inwards

  • The net realisable value (NRV) of inventory is the net amount the business is likely to receive when selling the goods

    • The selling price of the inventory 

    • Minus any selling expenses

      • Such as the cost of repairing damaged goods

What is the basis for the valuation of inventory?

  • Inventory is valued at the lower value between:

    • The cost

    • The net realisable value

  • This method of valuation complies with the accounting principle of prudence

    • The value of the inventory (asset) is not overstated

    • The profit is not overstated

  • For most inventory, the cost will be the lower of these values; however, there are some exceptions

    • Damaged goods might need to be repaired before they can be sold

    • Goods that are close to their expiration date might need to be sold at a lower price

    • The business might use lower prices to promote new products

Worked Example

Chen purchased an item of inventory for $15 and paid an extra $3 for delivery charges.

Chen accidentally damages the item. If he spent $8, he could sell it for $24.

What is the value of the item of inventory?

Answer

  • Find the total cost of the item by adding the delivery charge to the purchase cost

    • $15 + $3 = $18

  • Find the net realisable value by subtracting the repair cost from the selling price

    • $24 - $8 = $16

Inventory is valued at the lower value between cost and net realisable value.

The inventory is valued at $16

Inventory Valuation Statements

What is an inventory valuation statement?

  • An inventory valuation statement shows the total valuation for the inventory of a business

  • These are useful when a business sells different types of goods

  • There is no fixed format, however, a table is normally used

  • The statement should show:

    • The name of each type of good

    • The cost of each item

    • The net realisable value of each item

    • The quantity of each type of goods

    • The total value of each type of goods

    • The overall value of the goods

Exam Tip

Use a table structure to make your workings clear to an examiner. This means that you might get follow-through marks if you make an arithmetic mistake but follow the correct process.

Worked Example

Mei is a trader who sells art supplies. Mei provides the following information about her inventory at 29 February 2024.

Item

Number of units

Cost per unit

$

Carriage inwards per unit

$

Selling price per unit

$

Selling expenses per unit

$

Paintbrushes

50

2

-

4

-

Packs of Paint

80

25

2

30

1

Easels

5

30

5

40

8

Calculate the value of the inventory at 29 February 2024.

Answer 

  • Find the total cost per unit by adding together the cost per unit and the carriage inwards per unit

  • Find the net realisable value per unit by subtracting the selling expenses per unit from the selling price per unit

  • Value each unit at the lower of the cost and the net realisable value

  • Multiply the value per unit by the number of units to find the total value for each item

  • Add together the total values for each item.

Item

Number of units

Cost

$

Net realisable value

$

Value per unit

$

Valuation

$

Paintbrushes

50

2

4

2

50 ✕ 2 = 100

Packs of Paint

80

25 + 2 = 27

30 - 1 = 29

27

80 ✕ 27 = 2 160

Easels

5

30 + 5 = 35

40 - 8 = 32

32

5✕ 32 = 160

Total

2 420

The total valuation of the inventory is $2 420.

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Dan Finlay

Author: Dan Finlay

Dan graduated from the University of Oxford with a First class degree in mathematics. As well as teaching maths for over 8 years, Dan has marked a range of exams for Edexcel, tutored students and taught A Level Accounting. Dan has a keen interest in statistics and probability and their real-life applications.