Calculating the Full Cost of Each Product

Include materials, labour, packaging and losses so that a selling price starts from reliable numbers.

Part 4 of 10 | Turning a Handmade Product into a Small Business

Learning goals

Build a batch cost sheet, calculate cost per saleable unit and separate variable costs from fixed costs. Learn why your own time and rejected products cannot be ignored when planning a sustainable offer. This lesson uses fictional fabric-bag figures solely to demonstrate arithmetic. Replace them with dated supplier quotations and timed work when planning a real business.

Before you begin

Use one consistent product specification and a chosen batch size. A cost sheet for ten identical bags is easier to interpret than one combining several sizes and custom features. Record whether a figure is observed, quoted or estimated. Tax treatment is excluded from the teaching calculation and must be handled according to the GRA guidance applicable to your business. Do not assume a planning cost is a tax-deductible expense.

Step 1 Identify what the batch consumes

For the fictional batch of ten bags, fabric costs GMD 900, thread and small components GMD 100, packaging GMD 100 and incremental production energy GMD 100. These total GMD 1,200. Include the material actually consumed, allowing for normal cutting waste. If you buy a large fabric roll, the entire purchase is a cash outflow, but only the portion used belongs in this batch's material cost.

List quantities and unit costs so another reader can repeat the calculation. For example, metres consumed multiplied by the price per metre gives fabric cost. If transport is necessary to obtain those materials, allocate it consistently or record it separately under a defined policy. Do not leave a cost out simply because it was paid from your personal pocket instead of a business account.

Step 2 Include making time

Suppose the batch takes six hours of production work valued at a fictional GMD 100 per hour. The planning labour allowance is GMD 600, making total batch variable cost GMD 1,800. This is an economic allowance for the maker's work, not a statement of a legal wage or automatic cash payment. If you employ someone, actual pay arrangements and applicable obligations require their own verification.

Time cutting, preparation, sewing, finishing and packing where they vary with production. Avoid counting the same work twice in both batch labour and fixed overhead. Record customer administration or general management time separately when it does not fit the batch measure. A maker who counts only fabric may believe there is a profit while effectively giving their labour away.

Step 3 Divide by saleable output

If all ten bags pass inspection, GMD 1,800 divided by ten is GMD 180 per bag. If one bag is rejected and the same total cost has been incurred, nine saleable bags cost GMD 200 each. Do not divide by ten simply because ten were started. The rejected item's materials and time have still been consumed, and any recovery or rework should be documented rather than assumed.

Packaging waste, failed finishes and unusable ingredients can have a similar effect in other crafts. For products with shelf-life limits, expired stock is not successful output. Use realistic saleable quantities when planning and investigate why losses occur. Reducing a repeated defect may help more than buying a cheaper material that creates additional failures.

Step 4 Keep fixed costs separate

Fixed costs are costs treated as unchanged within a defined activity range and period, such as a modest monthly workspace charge. In the next lesson, the example uses GMD 1,200 of monthly fixed operating costs, separate from the batch's variable costs. A machine purchase is also a cash requirement, but it should not be silently inserted as the full cost of every batch. Keep a start-up spending list and seek appropriate accounting treatment for real assets.

Your costing method should state its assumptions. An energy allowance that varies with each batch belongs in the variable calculation here; a standing charge could belong in fixed costs. The label depends on behaviour in your model, not on a rule that all electricity must fit one category. Consistency prevents double counting and makes later pricing decisions understandable.

Guided exercise

1. Recreate the fictional batch sheet with the four non-labour costs and labour allowance. Show the GMD 1,200 subtotal and GMD 1,800 total.

2. Calculate unit cost when ten bags pass and when only nine pass. Explain the difference without removing the rejected bag's cost.

3. Prepare a blank cost sheet for your product with quantities, unit prices, labour time, source date and actual saleable yield.

4. Make separate lists for batch variable costs, monthly fixed costs and start-up purchases. Identify one item at risk of being counted twice.

5. Name two unknown inputs requiring a quote or timed trial. Do not invent favourable numbers to make the idea appear profitable.

Knowledge check

1. What is the fictional cost per bag when all ten pass?

2. What is it when nine pass at the same total cost?

3. Is the owner's labour allowance necessarily a cash payment?

Answer guide

1. GMD 180.

2. GMD 200.

3. No. It recognises work in economic planning; actual cash movements must be recorded separately.

Completion standard

Produce a traceable batch sheet and correct calculations for both yields. Explain labour, fixed costs and start-up purchases without double counting. Real-product costing remains provisional until the important quantities, prices and production times have been checked.

Sources and verification notes

Original business planning instruction with fictional practice figures. Examples are not market prices, financial forecasts, tax calculations or confirmation of commercial readiness. Apply the verified requirements relevant to the actual business before trading.