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Moving service Capacity with a Contingency Buffer: worked example

Reserve delivery capacity for variability before promising work.

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Moving service / move economics
Answer

With the illustrative inputs below, the result is 136 units.

Try this with your own numbers

Formula and worked example

Deliverable units = floor(hours × (1 − buffer) / hours per unit)

Example figures
InputExample
Available delivery hours640
Hours reserved for disruption15 %
Hours per move4
Calculated result136 units

Choose reliable inputs

Plan materials, travel and crew time before committing to a price. For this moving service calculation, use a completed job sheet, supplier quotes and a crew schedule and a consistent definition of one move.

  • Crew hours: include the portion belonging to this move or reporting period, and record where the value came from.
  • Mileage: include the portion belonging to this move or reporting period, and record where the value came from.
  • Packing materials: include the portion belonging to this move or reporting period, and record where the value came from.

Use the same currency for every money input. Do not mix weekly costs with monthly revenue, or count the same expense in both an itemised cost and allocated overhead.

Should every available hour be sold?

The reserve is your scenario assumption; it is not a universal staffing recommendation.

Compare a different assumption

What if this input changes?

If available delivery hours rises by 10%, this example changes by 13 units. This shows the effect of one change; it does not predict what will happen.

Open the calculator, save your baseline, then change the input supported by the least reliable estimate in your records. Compare both scenarios before committing to a price or capacity promise.

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