NPI, DFM/DFA & Engineering Change worked example

NPI Launch Cost at 92% effort charged to launch: a worked example

What does the result look like when effort charged to launch reaches 92%? The full calculation is worked below with real intermediate numbers. An NPI program manager building the launch budget for a new part transferring from design into volume production.

The inputs for this scenario

  • Launch Engineering Hours: 1,800 hrs (unchanged)
  • Blended Engineering Rate: 95 $/hr (unchanged)
  • Effort Charged to Launch: 92 % (raised for this scenario; the documented default is 80)
  • Tooling & Fixture Spend: 45,000 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Launch cost = engineering hours x blended rate x effort charged% + tooling investment) to the inputs above produces each figure below.
  • At this operating point the engine returns 202,320 $ for total npi launch cost, the number this scenario is built around.
  • At this operating point the engine returns 112 $ / piece for npi launch cost per unit.
  • At this operating point the engine returns 157,320 $ for variable npi launch cost.
  • At this operating point the engine returns 45,000 $ for fixed npi launch cost adder.

How this compares with the baseline

  • Against the tool's baseline example, where effort charged to launch sits at 80% and the headline result is 181,800 $, this scenario comes in 11.29% above the baseline at 202,320 $.
  • A figure at this level is achievable when effort charged to launch is genuinely sustained, not just peaked for a shift. It assumes the share of engineering effort you charge to launch is accurate; loading too much sustaining or warranty work into the launch bucket inflates the number and distorts amortization.

Results at a glance

  • Total npi launch cost: 202,320 $ (headline result)
  • Npi launch cost per unit: 112 $ / piece
  • Variable npi launch cost: 157,320 $
  • Fixed npi launch cost adder: 45,000 $

Run it with your numbers

  • Every input above is editable in the live NPI Launch Cost calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.