Courier service Sales Needed After a Discount
Required sales = ceiling(original contribution / discounted unit contribution)
Gather completed route logs, fuel receipts and delivery records. Include mileage, dispatch time, and handling. The starting figures are examples. Replace them with your own records.
Formula and worked example
Required sales = ceiling(original contribution / discounted unit contribution)
| Input | Example |
|---|---|
| Original selling price | 100 |
| Variable cost per sale | 60 |
| Price discount | 10 % |
| Original sales volume | 100 |
| Calculated result | 134 sales |
Choose reliable inputs
Compare route time, vehicle cost, delivery density and collection timing. For this courier service calculation, use completed route logs, fuel receipts and delivery records and a consistent definition of one delivery.
- Mileage: include the portion belonging to this delivery or reporting period, and record where the value came from.
- Dispatch time: include the portion belonging to this delivery or reporting period, and record where the value came from.
- Handling: include the portion belonging to this delivery 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.
Will a 10% discount need only 10% more sales?
Use contribution after variable cost. The discounted price must still exceed variable cost.
What if this input changes?
If original selling price rises by 10%, this example changes by -5 sales. 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.