Manufacturing Sales Engineering, Estimating & Quoting Operations worked example

Quote Revision Cost at 46% billable revision share: a worked example

What does the result look like when billable revision share reaches 46%? The full calculation is worked below with real intermediate numbers. A sales engineering lead tracking churn on a frequently revised quote uses it to quantify what each re-estimation cycle costs the team.

The inputs for this scenario

  • Estimator hours per revision: 6 hours (unchanged)
  • Loaded labor rate: 95 $/hr (unchanged)
  • Billable revision share: 46 % (raised for this scenario; the documented default is 40)
  • System & approval overhead: 180 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Total revision cost = estimator hours x loaded rate x billable share% + system overhead) to the inputs above produces each figure below.
  • At this operating point the engine returns 442 $ for total quote revision cost, the number this scenario is built around.
  • At this operating point the engine returns 73.7 $ / piece for quote revision cost per unit.
  • At this operating point the engine returns 262 $ for variable quote revision cost.
  • At this operating point the engine returns 180 $ for fixed quote revision cost adder.

How this compares with the baseline

  • Against the tool's baseline example, where billable revision share sits at 40% and the headline result is 408 $, this scenario comes in 8.38% above the baseline at 442 $.
  • A figure at this level is achievable when billable revision share is genuinely sustained, not just peaked for a shift. It assumes a flat loaded rate and a single overhead figure; it does not capture opportunity cost — the new quotes that estimator could have produced instead.

Results at a glance

  • Total quote revision cost: 442 $ (headline result)
  • Quote revision cost per unit: 73.7 $ / piece
  • Variable quote revision cost: 262 $
  • Fixed quote revision cost adder: 180 $

Run it with your numbers

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

Last reviewed 2026-05-12.