Appliance Electronics & Control Boards worked example

Component Attrition Cost Calculator at 2.07% expected component attrition: a worked example

What does the result look like when expected component attrition reaches 2.07%? The full calculation is worked below with real intermediate numbers. a procurement lead or estimator needs to include realistic component attrition in a control board quote or production plan

The inputs for this scenario

  • Components placed or issued: 420,000 components (unchanged)
  • Average component cost: 0.08 $ / component (unchanged)
  • Expected component attrition: 2.07 % (raised for this scenario; the documented default is 1.8)
  • Shortage handling or excess buy cost: 1,200 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable component attrition cost = components placed or issued × average component cost × expected component attrition) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,852 $ for total component attrition cost, the number this scenario is built around.
  • At this operating point the engine returns 0 $ / component for average component cost.
  • At this operating point the engine returns 652 $ for variable component attrition cost.
  • At this operating point the engine returns 1,200 $ for shortage handling or excess buy cost.

How this compares with the baseline

  • Against the tool's baseline example, where expected component attrition sits at 1.8% and the headline result is 1,767 $, this scenario comes in 4.81% above the baseline at 1,852 $.
  • A figure at this level is achievable when expected component attrition is genuinely sustained, not just peaked for a shift. It applies one blended part cost and attrition rate across all placements; in reality fine-pitch and high-value parts attrit differently than passives, so blended figures can mask hotspots.

Results at a glance

  • Total component attrition cost: 1,852 $ (headline result)
  • Average component cost: 0 $ / component
  • Variable component attrition cost: 652 $
  • Shortage handling or excess buy cost: 1,200 $

Run it with your numbers

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

Last reviewed 2026-05-12.