Vending, Kiosk & Self-Service Equipment worked example

Field Failure Cost at 8.64% annual failure incidence: a worked example in vending, kiosk & self-service equipment

Suppose annual failure incidence falls to 8.64%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimates the annual field failure cost of a deployed vending or kiosk fleet from unit count, per-call service cost, and failure incidence.

The inputs for this scenario

  • Units in Installed Fleet: 500 machines (held at the documented default)
  • Cost per Field Service Call: 320 $/call (held at the documented default)
  • Annual Failure Incidence: 8.64 % (the input this scenario stresses; the baseline uses 12)
  • Standing Dispatch Overhead: 4,000 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total field failure cost = fleet units x cost per service call x annual failure rate% + dispatch overhead.
  • Total field failure cost works out to 17,824 $ at these inputs, and this is the headline figure for the scenario.
  • Field failure cost per unit works out to 35.65 $ / piece at these inputs.
  • Variable field failure cost works out to 13,824 $ at these inputs.
  • Fixed field failure cost adder works out to 4,000 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where annual failure incidence sits at 12% and the headline result is 23,200 $, this scenario comes in 23.17% below the baseline at 17,824 $.
  • It computes total annual field failure cost, the per-unit cost across the fleet, and the split between variable repair cost and fixed dispatch overhead. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Total field failure cost: 17,824 $ (headline result)
  • Field failure cost per unit: 35.65 $ / piece
  • Variable field failure cost: 13,824 $
  • Fixed field failure cost adder: 4,000 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Field Failure Cost calculator, set annual failure incidence to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.