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Welding shop: How much should price change when costs rise?

Reprice work when supplier or delivery costs rise.

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Welding shop / fabrication job economics
Answer

Enter a weighted increase across the costs included. This is a target-margin calculation, not a demand forecast.

Try this with your own numbers

Formula and worked example

New price = cost × (1 + increase) / (1 − margin)

Example figures
InputExample
Current assigned cost600
Cost increase8 %
Required margin30 %
Calculated result925.7143

Choose reliable inputs

Plan materials, travel and crew time before committing to a price. For this welding shop calculation, use a completed job sheet, supplier quotes and a crew schedule and a consistent definition of one fabrication job.

  • Metal: include the portion belonging to this fabrication job or reporting period, and record where the value came from.
  • Consumables: include the portion belonging to this fabrication job or reporting period, and record where the value came from.
  • Machine time: include the portion belonging to this fabrication job or reporting period, and record where the value came from.

Use the same currency for every money input. Do not mix weekly costs with monthly revenue, or count the same expense in both an itemised cost and allocated overhead.

How much should price change when costs rise?

Enter a weighted increase across the costs included. This is a target-margin calculation, not a demand forecast.

Compare a different assumption

What if this input changes?

If current assigned cost rises by 10%, this example changes by 92.5714 . This shows the effect of one change; it does not predict what will happen.

Open the calculator, save your baseline, then change the input supported by the least reliable estimate in your records. Compare both scenarios before committing to a price or capacity promise.

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