January 29, 2022


Accounting + Finance Blog

Cost classification: Product cost meaning, calculation and reporting

Cost classification: Product cost meaning, calculation and reporting

Costs that are consumed and incurred during the production of a product, purchase of inventory, or performing a service are regarded as product costs. What exactly does the product cost? What are the types of product costs? How can you calculate it and record the same in a financial statement? These are discussed below.

Meaning of product cost

Product costs are costs incurred to manufacture a product or render a service. It is sometimes called production cost or manufacturing cost.

Types of the product cost

There are two types of the product cost

Expired product cost

This is the type of product cost in which revenue is already realized from it. Or that has been sold off. It is usually written off to the cost of sales and charged to the statement of profit or loss.

Unexpired product cost

READ ON  Cost accounting: Meaning and explanation

This is the part of the product costs that are yet to be sold. Or in which revenue is yet to be realized from it. Unexpired product costs form part of the inventory of the firm. It is usually stated as closing inventory and posted to the statement of financial position.

How to calculate product cost

Product cost for a manufacturing entity is the combination of material cost, direct labor cost, direct expenses, and production overhead cost. The format for calculating and presenting product costs is provided in the table below.

Cost classification: Product cost

If the total product cost is known, you can simply calculate product cost per unit with the formulae below.

Product cost per unit = Total product cost ÷ unit produced.

For example, if the total product cost calculated using the above format is 200,000 Naira, and the total units produced is 1,000 units. Using the formulae above, the product cost per unit is 200,000 ÷ 1,000. This gives a per-unit profit cost of 60 Naira per unit.

READ ON  Cost accounting functions you should know

A worked example

HoneyBooks manufactured 2,000,000 units of books in a year. In 2019, the company cost for producing this unit was

Material cost. N280,000,000
Direct wages N98,000,000
Direct Expenses . N1,5000,000
Production overheads N62,000,000

Assuming a total of 1,700,000 units was sold for 250 Naira each, what is
1. The total product cost
2. Product cost per unit
3. Expired product cost
4. Unexpired product cost
5. Total revenue
6. State the journal entry for the cost of sales and closing inventory
7. Prepare the profit statement


The total product cost is presented in the table below

Cost classification: Product cost

The product cost per unit is 441,500,000 ÷ 2,000,000 units. This gives 220.75 Naira per unit.

The expired product cost is 220.75 × 1,700,000 units. That is ‭375,275,000‬ Naira. This is the cost of sales.

READ ON  Cost classification: Meaning of Controllable Cost and Explanations

The unexpired product cost is 220.75 × 300,000 (that is, the units unsold 20,000,000 – 17,000,000). This gives ‭66,225,000‬ Naira.

The addition of expired and unexpired product cost give you the total product cost of 441,500,000 Naira.

The total revenue for HoneyBooks for the year 2019 is 250 × 1,700,000. This gives ‭425,000,000 Naira‬.

The journal entries are shown below

Cost classification: Product cost

The profit statement is shown below

Cost classification: Product cost

To conclude, product cost reflects the cost of manufacturing a product. It becomes the cost of sales (expired cost) and closing inventory (unexpired cost). Product cost computation is necessary for trading and manufacturing businesses.