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

Prototype Quote at 61% prototype quote confidence: a worked example

This worked example runs the prototype quote numbers for a tougher week than the baseline: 61% prototype quote confidence instead of the typical 85%. Estimate prototype quote cost for a low-volume development build.

The inputs for this scenario

  • Prototype cost per unit: 420 $ / unit (held at the documented default)
  • Prototype units requested: 12 units (held at the documented default)
  • Prototype quote confidence: 61 % (the input this scenario stresses; the baseline uses 85)
  • Expected prototype build yield: 75 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: gross prototype quote value before risk = prototype cost per unit × prototype units requested.
  • expected prototype quote value works out to 2,306 $ at these inputs, and this is the headline figure for the scenario.
  • gross prototype quote value before risk works out to 5,040 $ at these inputs.
  • prototype value at risk from unclear scope works out to 1,966 $ at these inputs.
  • prototype value at risk from build fallout works out to 769 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where prototype quote confidence sits at 85% and the headline result is 3,213 $, this scenario comes in 28.24% below the baseline at 2,306 $.
  • Use it when quoting a prototype or first-article build where the design is not frozen and yields are uncertain, before you commit a fixed price. 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

  • expected prototype quote value: 2,306 $ (headline result)
  • gross prototype quote value before risk: 5,040 $
  • prototype value at risk from unclear scope: 1,966 $
  • prototype value at risk from build fallout: 769 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Prototype Quote calculator, set prototype quote confidence to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.