Machinery Quote Price Calculator from Target Margin and Contingency
The classic pricing error in machine building is adding the margin percentage to cost as if it were a markup. This calculator works backward from the margin on price you want, after contingency, warranty reserve and commission.
Your numbers
Your results
Estimating aid. Replace rates and percentages with your own costed standards and review the result with finance before quoting.
Quote price vs target margin
Sweeps Target margin from 10 to 50, holding your other inputs fixed.
Standard cost feeds for quotes
Optional: ask how ERP standard costs could feed an estimating template.
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How to use it
Enter the purchased material total from your bill of materials, assembly hours with a fully loaded shop rate, engineering hours for mechanical, controls and software, and the estimated freight, crating and commissioning cost. Choose a contingency percentage applied to direct cost. Then enter warranty reserve and sales commission as percentages of price, and the margin you want as a percentage of price. The calculator returns the price that delivers exactly that margin, the markup this implies on the cost base and the margin in currency. Move the target slider or read the chart to compare price points.
Why margin is not markup
A 28 percent margin on price needs a markup of about 39 percent on cost, not 28. In formula form, price equals cost base divided by one minus the sum of target margin, warranty percent and commission percent, where each is a fraction of price. The calculator therefore divides by the share of price left to pay for cost. Items that scale with price, such as commission, must be in the divisor rather than added to cost, otherwise the real margin on the invoice will be lower than planned. The divisor is protected from falling below 0.01.
- Margin = (price - cost) / price.
- Markup = (price - cost) / cost.
- Percent-of-price items belong in the divisor.
Choosing contingency
Contingency should reflect how well the scope is defined. A repeat design with a stable bill of materials might carry 3 to 5 percent, while a first-of-kind line with software development and unknown customer interfaces may justify 10 to 15 percent or more. Applying it only to direct cost, as here, keeps it separate from the margin so it is visible and can be released if the project finishes well. Do not hide contingency in inflated hours, because it becomes impossible to review later.
Common mistakes
Estimators often forget internal engineering hours, price at standard rate rather than loaded rate and omit commissioning travel. They also add margin on top of a price that already includes commission. When a customer asks for a discount, calculate the new price and the new margin in currency before agreeing, because a 5 percent discount on price removes much more than 5 percent of margin. Link your estimate to the ERP item and routing costs so the rates are current.
Frequently Asked Questions
What is the difference between margin and markup?
Margin is profit divided by selling price, while markup is profit divided by cost. A 25 percent margin equals a 33 percent markup. Mixing them up is one of the most common quoting errors in engineered equipment.
Should commission be a cost or a percentage of price?
It should be modeled as a percentage of price if that is how you pay it. That way, any change in price automatically moves the commission, and your target margin stays correct. Adding it to cost understates the required price.
How much contingency should I add?
Match it to uncertainty. Repeat designs with firm supplier quotes may need very little, while new designs, tight schedules and custom software justify more. Record the reason for the percentage so it can be reviewed after the job.
Does the quote include currency and tax?
No. The calculator is currency neutral and excludes sales tax or VAT. If you buy components in another currency, add a hedge or an exchange rate buffer to material before using the tool.
If estimates start in spreadsheets today, we can help connect them to ERP standard costs so every quote uses the same rates.
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