A selling price has six layers, and most people count two

Purchase price plus a percentage is not a calculation, it is a hope. Here is the full cost stack, worked through with numbers, and what it tells you that a markup never will.

TL;DR (In short)

Direct costs are materials, labour and the depreciation of what you make the product with.
Add production overhead and the overhead of buying, selling and running the company, and you have the cost price.
Add the profit you want per unit, and you have the selling price.
The market will not care what you calculated. That is not an argument against calculating.
The real payoff is that the stack shows you which layer to attack when the price has to come down.

Why a markup is not a price

Most small businesses price the same way: take what the item cost to buy or make, add a percentage that feels about right, look at what the competition charges, adjust. It works well enough to stay in business, which is exactly why it survives. It also hides the two failures that hurt most, selling something at a loss without noticing, and cutting a price you could not afford to cut.

The alternative is not complicated accounting. It is one stack of six numbers, built in a fixed order, where each layer answers a different question about the same product.

The six layers, in order

Layer	What belongs in it
1. Direct materials	What you buy that ends up in or on the product, including auxiliary materials and packaging.
2. Direct labour	The hours actually spent on this product, at the real hourly cost including contributions.
3. Direct depreciation	Wear on the machines and tools used to make it. The layer most often skipped entirely.
1 + 2 + 3	Total direct costs. Everything that exists only because you made this unit.
4. Production overhead	The workshop or warehouse itself: rent, energy, maintenance, supervision.
5. Purchasing, sales and admin overhead	Procurement, the sales effort, accounting, software, management. The company existing.
1 + 2 + 3 + 4 + 5	Cost price. Sell below this and you are paying for the privilege.
6. Target profit per unit	What you want the unit to earn. A decision, not a calculation.
1 through 6	Selling price. Your reference point, not the market’s.

The order matters because each cut answers a question. Total direct costs tell you the floor below which an extra unit destroys money. Cost price tells you the floor below which the whole operation does. Selling price tells you what the product needs to earn for the plan to work.

The same product, with numbers

Take a wooden chair you assemble yourself, and assume you make 500 of them a month, which is how the overheads get spread.

Layer	Per chair	Running total
Materials, wood, screws, packaging	18.00	18.00
Labour, 30 minutes at 22.00 per hour	11.00	29.00
Depreciation of saw and press	1.50	30.50 direct
Workshop rent and energy, 4,000 over 500 units	8.00	38.50
Admin, sales and software, 3,250 over 500 units	6.50	45.00 cost price
Target profit, 20 percent of cost price	9.00	54.00 selling price

Notice what the stack exposes. The chair looks like a 30.50 product and is a 45.00 product. Somebody pricing off materials and labour alone would see 29.00 and feel comfortable discounting to 40.00, which is five euros below the real floor on every single chair sold.

The layer everybody forgets

Overheads are spread over a quantity, which means your cost price depends on a number you are only guessing at: how much you will actually sell. Halve the volume and the same chair costs 59.50 to put on the shelf, which is more than the price you were planning to charge. This is why a calculation done once a year is worth so much less than one you redo when volume moves.

When the market says no

Very often you will finish this calculation, arrive at 54.00, and find the going rate is 47.00. The calculation has not failed. It has just told you something specific instead of something vague: at 47.00 you earn 2.00 per chair rather than 9.00, and you now know exactly which layer has to move for that to change.

That is the part a markup can never give you. A percentage on top of purchase price produces a number. The stack produces a list of places to look, ranked by how much room each one has.

Reading the stack for hidden margin

The biggest layer is rarely the most flexible. Materials usually dominate and are usually hardest to move. Check the second and third largest first, because that is where a supplier conversation or a process change actually lands.
Overhead per unit falls with volume, so growth is a lever on cost. If layers 4 and 5 are a large share, selling more is a pricing strategy, not just a sales target.
Watch what happens between the warehouse and the customer. Transport, handling and returns sit outside this stack and quietly eat the profit in layer 6. Who collects, who delivers and who pays for it can change the picture by a quarter.
Do the calculation per product, not per company. A company-wide average margin tells you the business is fine while individual lines lose money inside it.

Where the numbers come from

Layers 1 and 2 come out of your purchasing and production records. Layers 4 and 5 come from your own overheads divided by a realistic quantity. The reason this exercise usually gets postponed is not the arithmetic, it is that the inputs live in four places and none of them agree. When purchasing, stock and sales are recorded in one system, the calculation stops being a project and becomes something you can redo whenever a supplier price changes.

Know your floor before you discount

Keep purchasing, stock and sales in one system and the inputs for this calculation are already there.

Free trial

Wishing you business success,

MetaKocka Team

Would you like to be informed about news and optimizations?