Manufacturing pricing: bill of materials, factory cost and channel
In manufacturing, cost does not come through the door: it is assembled. Each product has a bill of materials with raw material, packaging, machine time and labor, and each of those lines changes at its own pace — resin with the exchange rate, energy with the tariff flag, the labor hour with the collective agreement.
What follows walks the path from inside the factory to the price list: what goes into the product structure, how fixed cost is allocated, how much process loss costs and why the same item needs different prices for the distributor, for retail and for direct sales.
How the factory price is formed
Six layers between the bill of materials and the list price. They are calculated in order, and a mistake in the first is inherited by all the others.
- Product structure and raw material
- The bill of materials says how much of each input goes into one unit. Its cost changes with every raw material purchase, and a product with fifteen components has fifteen clocks running at different speeds.
- Process loss and scrap
- What goes into the line and does not come out as a sellable product has still been paid for. A three percent loss left out of the bill of materials is three percent of cost that reappears in the result with no name.
- Conversion: machine hour and labor
- Setup time, cycle time and the hourly cost of each work center. It is what separates the simple product from the one that occupies the factory bottleneck for much longer at the same price.
- Fixed cost allocation and expected volume
- The factory costs money just to exist, and that cost is spread over the volume expected to be produced. When actual volume falls below plan, each unit absorbs less than it should — and the whole price list is underpriced with nothing flagging it.
- IPI and tax substitution on the way out
- Regime, NCM and destination define the IPI, ICMS and the ST that the manufacturer collects for the chain. It is tax calculated on the price being formed, not on cost — which changes the order of the calculation.
- Price policy by channel
- Distributor, retail, marketplace and direct sales buy the same item with different services, volumes and margins. A single price list per channel is what keeps the manufacturer from competing with its own customer.
The calculation for one unit, from the bill of materials
A product from the company's own line, with the structure read from the records. The cost does not arrive on an invoice: it is assembled, and each line below changes at a different pace from the others.
| Raw material from the bill of materialsAt the cost of the latest purchase, not at the annual budget's. | R$ 18.40 |
|---|---|
| Process loss (3%)What goes into the line and does not come out as a sellable product. | R$ 0.55 |
| Packaging | R$ 1.20 |
| Direct labor (0.25 h at R$ 32/h) | R$ 8.00 |
| Machine hour (0.4 h at R$ 45/h)The item that occupies the bottleneck costs more than its time. | R$ 18.00 |
| Fixed cost allocation at planned volume | R$ 9.00 |
| Factory cost | R$ 55.15 |
If the factory produces 20% less than the volume used to allocate the fixed cost, the R$ 9.00 becomes R$ 11.25 and the unit comes to cost R$ 57.40 — 4.1% that a price list built on the budget does not know about. Idle capacity shows up in no revenue report: it shows up in the margin, a quarter later.
What blocks margin in manufacturing
Five factory situations in which the price keeps looking right for months — until the quarter's result says otherwise.
The standard cost that became fiction
The standard was calculated in the annual budget and raw material has moved since. While the price list is built on it, the factory sells at a margin that exists in the spreadsheet and not in the bank account.
The allocation tied to the volume that never came
Fixed cost was spread over planned production. The factory produced less, each unit carried less cost than it should and idle capacity showed up in no price.
The channel with no written policy
The distributor negotiates a discount, direct sales advertises cheaper and retail finds out. Without a price difference justified by service and volume, the manufacturer becomes a competitor of its own channel.
The special quote made by hand
A custom order comes out of a new spreadsheet, put together by whoever was available that day. The item goes into production with a margin nobody checked and, if it works out, becomes the price list.
The input price increase that is slow to become price
Raw material went up in January and the new price list comes out in April. The three months in between sold at the old margin on every item that uses that input — which tend to be more than you would imagine.
Who already forms the price from the bill of materials
AGT performs raw material inspection and in-process quality control, with in-house engineering on the custom projects it takes on — the operation in which cost comes from the bill of materials and each special order redoes the calculation. The site lists it as a technology company, and it is its product structure, not the sector label, that brings it to this page.
What the AGTechnologies operation measured after swapping the spreadsheet for rule-based pricing: 5% higher margin already in the first quarter.
Implementing the REVEMA solution completely changed our pricing strategy. We raised our margins by 5% in the first quarter, which beat our initial expectations.
Read the AGTechnologies case study
The numbers Revema measures in each operation are in results, and the companies that have already left the spreadsheet are in clients.
RevPrice in a manufacturing operation
RevPrice forms the price from the product structure read from the ERP: raw material at current cost, process loss, the time of each work center and the allocation of fixed cost over the volume the factory is actually producing. When an input is repriced, every item that uses it recalculates together.
On top of that cost come the rules: margin by product line, price list by channel, IPI and ST on the way out, and a simulation of the whole repricing before it becomes a price list. The quote for a custom item comes out of the same calculation as the standard price list — not from a spreadsheet built from scratch for every order.
Frequently asked questions about manufacturing pricing
The questions that come up before the first conversation, with answers written for this kind of operation.
How does the price come from the bill of materials instead of from a markup?
The product structure is read from the ERP: each component with the quantity that goes into one unit, the expected process loss and the time in each work center. The unit's cost is recalculated when any of those lines changes, and the margin rule works on top of it. Markup still exists, but it now applies to a cost that corresponds to what the factory spent.
Standard cost or actual cost: which one should form the price?
Both, with different roles. Standard cost serves to plan and to compare what was expected with what happened; the price has to follow actual cost, because that is what determines the margin on what is going out today. The risk of forming price from the standard alone is well known: while the input rises, the price list remains correct relative to a number that has aged.
How do you price different channels without competing with your own customer?
With a price list per channel and a difference justified by service, volume and term. The distributor buys at scale and takes on inventory and reach; direct sales have none of those costs and cannot reach the consumer below those who resell. When that difference is a calculated rule, and not a case-by-case negotiation, the channel can defend its own price.
Can you quote a custom item without redoing the calculation by hand?
The way is to build the special item's bill of materials from components already in the records and let the calculation apply the same rule as the standard price list. The quote comes out with the margin visible and with the order's setup cost inside the calculation, and what was quoted is recorded — so an item that repeats is born with the history of what was charged before.
Does the calculation handle IPI and tax substitution on the way out?
It does, and the order matters. IPI and ICMS-ST on the way out apply to the price being formed, not to cost, so the calculation has to solve price and tax together to arrive at the correct margin. It reads NCM, regime and destination from the records and applies the destination state's MVA when the manufacturer is responsible for collecting for the chain.
Further reading
The blog covers the same subjects with factory examples: how cost enters price formation, what allocation hides and why margin disappears between the quote and the invoice.
Pricing in the other segments
Price is formed differently in each operation. These are the two others Revema serves, each with its own problem and vocabulary.
Want the price coming from the bill of materials, not from a spreadsheet?
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