Appliance Electronics & Control Boards worked example

Component Attrition Cost Calculator at 1.3% expected component attrition: a worked example

This worked example runs the component attrition cost calculator numbers for a tougher week than the baseline: 1.3% expected component attrition instead of the typical 1.8%. Estimate appliance control board component attrition cost from component placements, average component cost, attrition rate, and fixed shortage handling cost.

The inputs for this scenario

  • Components placed or issued: 420,000 components (held at the documented default)
  • Average component cost: 0.08 $ / component (held at the documented default)
  • Expected component attrition: 1.3 % (the input this scenario stresses; the baseline uses 1.8)
  • Shortage handling or excess buy cost: 1,200 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Variable component attrition cost = components placed or issued × average component cost × expected component attrition.
  • Total component attrition cost works out to 1,610 $ at these inputs, and this is the headline figure for the scenario.
  • Average component cost works out to 0 $ / component at these inputs.
  • Variable component attrition cost works out to 410 $ at these inputs.
  • Shortage handling or excess buy cost works out to 1,200 $ at these inputs.

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 8.91% below the baseline at 1,610 $.
  • Use it when setting buffer quantities, costing a board BOM, or quantifying the dollar impact of an attrition rate on a high-placement appliance board. 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

  • Total component attrition cost: 1,610 $ (headline result)
  • Average component cost: 0 $ / component
  • Variable component attrition cost: 410 $
  • Shortage handling or excess buy cost: 1,200 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Component Attrition Cost Calculator calculator, set expected component attrition to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.