Manufacturing Cost Accounting & Finance worked example

Production Volume Variance at 65% expected equipment uptime: a worked example

This worked example runs the production volume variance numbers for a tougher week than the baseline: 65% expected equipment uptime instead of the typical 90%. Estimate production volume variance for manufacturing cost accounting and finance using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.

The inputs for this scenario

  • Good units produced per machine cycle: 4 units / cycle (held at the documented default)
  • Scheduled production cycles available: 480 cycles (held at the documented default)
  • Expected equipment uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • Expected first-pass yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross production volume variance capacity = production volume variance output per cycle × available production volume variance cycles.
  • Good production volume variance capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross production volume variance capacity works out to 1,920 units at these inputs.
  • Production volume variance downtime loss works out to 672 units at these inputs.
  • Production volume variance yield loss works out to 37.44 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where expected equipment uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 27.78% below the baseline at 1,211 units.
  • Use it to set an absorption volume base, plan capacity against demand, or quantify the volume cost of downtime versus scrap. 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

  • Good production volume variance capacity: 1,211 units (headline result)
  • Gross production volume variance capacity: 1,920 units
  • Production volume variance downtime loss: 672 units
  • Production volume variance yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Production Volume Variance calculator, set expected equipment uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.