Storage operator Unit rental Quote
Delivery cost 400; allocated overhead 100; commission 35.7143; retained contribution after assigned costs 178.5714.
Quote = (itemised delivery costs + allocated overhead) ÷ (1 − margin − commission)
Gather rental contracts, asset records and maintenance logs. Include facility overhead, vacancy, and service costs. The starting figures are examples. Replace them with your own records.
Formula and worked example
Quote = (itemised delivery costs + allocated overhead) ÷ (1 − margin − commission)
| Input | Example |
|---|---|
| Facility overhead cost | 200 |
| Vacancy cost | 150 |
| Service costs cost | 50 |
| Fixed overhead allocated to this unit rental | 100 |
| Target margin after commission | 25 % |
| Selling-price commission | 5 % |
| Calculated result | 714.2857 |
Delivery cost 400; allocated overhead 100; commission 35.7143; retained contribution after assigned costs 178.5714.
Choose reliable inputs
Account for turnaround, maintenance and available inventory before accepting another booking. For this storage operator calculation, use rental contracts, asset records and maintenance logs and a consistent definition of one unit rental.
- Facility overhead: include the portion belonging to this unit rental or reporting period, and record where the value came from.
- Vacancy: include the portion belonging to this unit rental or reporting period, and record where the value came from.
- Service costs: include the portion belonging to this unit rental 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.
How should commission change my quote?
Adding a commission percentage to cost does not preserve the target margin. Commission is based on the selling price.
Allocate overhead once; target margin and commission together must be below 100%.
What if this input changes?
If facility overhead cost rises by 10%, this example changes by 28.5714 . 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.