Cost sheet: format and a solved example
Financial accounts tell you the profit of the whole business. A cost sheet tells you what one unit costs to make and sell, layer by layer.
Cost accounting in one paragraph
Financial accounting reports the result of the business as a whole to outsiders. Cost accounting looks inside: it finds the cost of each product, job or process, so that prices can be fixed, waste controlled and decisions taken. Its basic statement is the cost sheet: a statement that builds up the total cost of the output of a period step by step, and usually shows the cost per unit.
Elements of cost
| Element | Direct (traceable to the product) | Indirect (overheads) |
|---|---|---|
| Material | Raw material that becomes part of the product: wood in a table | Glue, oil, cotton waste, small tools |
| Labour | Wages of workers who make the product | Wages of supervisors, watchmen, storekeepers |
| Expenses | Costs of a specific job: royalty, hire of special equipment | Rent, power, insurance, depreciation |
Overheads are grouped by function: factory (works) overheads, office and administration overheads, and selling and distribution overheads.
The layers of cost
- Prime cost = Direct materials consumed + Direct labour + Direct expenses.
- Works (factory) cost = Prime cost + Factory overheads, adjusted for opening and closing work in progress.
- Cost of production = Works cost + Office and administration overheads.
- Cost of goods sold = Cost of production + Opening stock of finished goods − Closing stock of finished goods.
- Cost of sales (total cost) = Cost of goods sold + Selling and distribution overheads.
- Sales = Cost of sales + Profit.
Direct materials consumed = Opening stock of raw materials + Purchases (with carriage inwards) − Closing stock of raw materials.
Solved example
From the following figures of Vindhya Furniture for the year ended 31 March 2026, prepare a cost sheet. Output for the year was 10,000 chairs.
| Item | ₹ | Item | ₹ |
|---|---|---|---|
| Opening stock of raw materials | 40,000 | Factory overheads | 1,04,000 |
| Purchases of raw materials | 3,60,000 | Office and administration overheads | 62,000 |
| Closing stock of raw materials | 50,000 | Selling and distribution overheads | 68,000 |
| Direct wages | 1,50,000 | Opening work in progress | 16,000 |
| Direct expenses | 20,000 | Closing work in progress | 20,000 |
| Opening stock of finished goods | 38,000 | Sales | 9,35,000 |
| Closing stock of finished goods | 40,000 |
| Particulars | ₹ | ₹ |
|---|---|---|
| Opening stock of raw materials | 40,000 | |
| Add: Purchases | 3,60,000 | |
| 4,00,000 | ||
| Less: Closing stock of raw materials | 50,000 | |
| Direct materials consumed | 3,50,000 | |
| Direct wages | 1,50,000 | |
| Direct expenses | 20,000 | |
| PRIME COST | 5,20,000 | |
| Add: Factory overheads | 1,04,000 | |
| Add: Opening work in progress | 16,000 | |
| Less: Closing work in progress | (20,000) | |
| WORKS COST | 6,20,000 | |
| Add: Office and administration overheads | 62,000 | |
| COST OF PRODUCTION | 6,82,000 | |
| Add: Opening stock of finished goods | 38,000 | |
| Less: Closing stock of finished goods | (40,000) | |
| COST OF GOODS SOLD | 6,80,000 | |
| Add: Selling and distribution overheads | 68,000 | |
| COST OF SALES | 7,48,000 | |
| Profit (balancing figure) | 1,87,000 | |
| SALES | 9,35,000 |
Reading the result
- Prime cost is ₹5,20,000; works cost ₹6,20,000; cost of production ₹6,82,000.
- Cost of production per chair = ₹6,82,000 ÷ 10,000 = ₹68.20.
- Profit is ₹1,87,000, which is 25% on cost of sales and 20% on sales.
Profit on cost and profit on sales
The two percentages describe the same profit from two bases, and questions switch between them.
| If profit is | Then it equals |
|---|---|
| 25% on cost (1/4 of cost) | 20% on sales (1/5 of sales) |
| 20% on cost (1/5 of cost) | 16.67% on sales (1/6 of sales) |
| 33.33% on cost (1/3 of cost) | 25% on sales (1/4 of sales) |
| 50% on cost (1/2 of cost) | 33.33% on sales (1/3 of sales) |
Rule: a profit of 1/n on cost is 1/(n + 1) on sales. To find the selling price for a desired profit on sales, divide cost by (1 − rate). Example: cost ₹7,48,000 and desired profit 20% on sales gives ₹7,48,000 ÷ 0.8 = ₹9,35,000.
Items left out of a cost sheet
Costs that are purely financial, or are appropriations of profit, are not part of cost:
- Interest on loans, cash discount, loss on sale of assets or investments.
- Income tax, dividends, transfers to reserves.
- Donations and charity.
- Goodwill and preliminary expenses written off.
- Incomes not related to production: interest and dividend received, profit on sale of assets.
Because of these items, the profit shown by the cost sheet usually differs from the profit in the financial accounts. A reconciliation statement explains the difference.
Treatment of some special items
- Sale of scrap from materials: deducted from factory overheads or works cost.
- Carriage inwards and octroi on materials: added to purchases of raw materials.
- Carriage outwards, packing for delivery, salesmen's commission: selling and distribution overheads.
- Factory rent, power, depreciation of plant, supervisor's salary: factory overheads.
- Office rent, audit fees, directors' fees, office salaries: office and administration overheads.
Estimated cost sheets and tenders
A cost sheet can also look forward. To quote a price for a new order, the firm estimates the materials and wages the job will need and adds overheads at the percentages found from past cost sheets: for example factory overheads as a percentage of direct wages, and office overheads as a percentage of works cost. In the example, factory overheads are ₹1,04,000 on wages of ₹1,50,000, about 69.33% of direct wages; office overheads are ₹62,000 on works cost of ₹6,20,000, exactly 10%.
Questions students ask
What is prime cost?
The total of direct materials consumed, direct labour and direct expenses. It is the first layer of cost in a cost sheet.
Is interest on a loan included in a cost sheet?
No. Purely financial items such as interest, and appropriations such as tax and dividend, are excluded from cost.
How do I convert profit on cost into profit on sales?
A profit of 1/n on cost equals 1/(n + 1) on sales. For example 25% (one quarter) on cost is 20% (one fifth) on sales.
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