Contract Manufacturing, Job Shop Quoting & Make-to-Order worked example

Supplier Quote Comparison at 72% share of volume on a true like-for-like quote: a worked example

This worked example runs the supplier quote comparison numbers for a tougher week than the baseline: 72% share of volume on a true like-for-like quote instead of the typical 100%. Compare supplier quote impact for bought-out or outside-processed work.

The inputs for this scenario

  • Per-unit price gap between supplier quotes: 2.85 $ / unit (held at the documented default)
  • Annual buy quantity affected by the switch: 4,200 units (held at the documented default)
  • Share of volume on a true like-for-like quote: 72 % (the input this scenario stresses; the baseline uses 100)
  • Confidence the quoted price will hold: 95 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: gross supplier quote impact = supplier quote cost difference per unit × affected buy quantity.
  • comparable supplier quote impact works out to 8,187 $ at these inputs, and this is the headline figure for the scenario.
  • gross supplier quote impact works out to 11,970 $ at these inputs.
  • supplier quote impact outside comparable scope works out to 3,352 $ at these inputs.
  • supplier quote impact at risk from confidence works out to 431 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where share of volume on a true like-for-like quote sits at 100% and the headline result is 11,372 $, this scenario comes in 28% below the baseline at 8,187 $.
  • Use it during a quote bake-off or resourcing decision when two vendors are within a few dollars per unit and you need to know whether the gap is material after risk. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • comparable supplier quote impact: 8,187 $ (headline result)
  • gross supplier quote impact: 11,970 $
  • supplier quote impact outside comparable scope: 3,352 $
  • supplier quote impact at risk from confidence: 431 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Supplier Quote Comparison calculator, set share of volume on a true like-for-like quote to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.