Research brief 02.05Discount decisions
Calculate What a Venue Discount Gives Up and What Must Replace It
A lower invoice can help fill an unused date or reduce the contribution of a calendar that would have sold anyway. Calculate which decision you are making before approving the concession.
Start with the alternative to the proposed discount. Are you choosing between two prices for the same event, accepting a booking for an otherwise unused slot, or lowering the price of every future booking? Those decisions use different comparisons. The recovery calculation below estimates how many comparable bookings would replace the contribution after repricing. For an otherwise unused Thursday, compare the offered revenue with additional costs and competing uses of the slot.
Use the event's actual scope, access window and cost records. The rental-pricing guide sets the rate structure. This guide tests a specific concession within it, including the additional work hidden inside a free hour or upgrade.
1. Compare the two offers on one cost basis
For the same delivered event, contribution is revenue less its variable costs. The OpenStax contribution framework keeps period fixed costs outside that calculation. Contribution helps cover those costs; it is not net profit or cash available to withdraw.
Bring the revenue and event-driven costs from the event ledger, then reconcile their classification. Include variable booking commissions or acquisition charges once, if they are not already in that cost total. Recurring marketing, continuing salaries and allocated rent do not become avoidable costs merely because the worksheet assigns a share to an event.
Some event-driven costs remain unchanged when price falls: the same contracted cleanup or crew call still has to be bought. A percentage fee may fall, depending on the actual agreement and payment basis. Enter that saving from the agreement rather than assuming that all costs fall with the invoice. If the offer also removes services, identify their genuinely avoided costs and describe the changed scope separately.
| Measure | Original offer | Revised offer |
|---|---|---|
| Revenue | $6,000 | $5,400 |
| Percentage fee within costs | $180 | $162 |
| Total variable costs | $3,300 | $3,282 |
| Contribution | $2,700 | $2,118 |
The $600 revenue reduction avoids $18 of fees, leaving $582 less contribution. That is about 21.6% of the original $2,700 contribution. The difference is exact under the stated assumptions; the assumptions still need to match the venue's real offer and contracts.
2. Separate an unused-slot offer from whole-book repricing
If a particular date would otherwise remain unused, compare the offered revenue with the additional costs of accepting it. Include any extra crew call, overtime, opening or contractor minimum, consumables and booking-specific charges. Continuing period costs that are unchanged by this choice stay outside the incremental comparison.
Also include what the booking displaces. An apparently empty afternoon may be needed for the next event's setup; the same crew may already be committed elsewhere. OpenStax's special-order analysis explains why unused capacity and additional resources change this decision. A spare room without the necessary people is not spare operating capacity.
A positive incremental result can support a bounded spare-slot offer. It does not establish that the new rate will cover the venue's total employment costs, fixed overhead and investment over a season. Keep that full period plan alongside the booking decision.
For a contested prime date, compare feasible alternatives using their expected contribution and the same blocked interval. The calendar inventory guide supplies that interval. Record the evidence for another booking rather than assigning a full-price sale to every inquiry. A signed offer, an active competing inquiry and a hoped-for future customer are different alternatives.
If the concession applies to the whole future book, include customers who would have bought without it. Contribution lost on those bookings must be replaced by genuinely additional, deliverable sales. Label the affected calendar segment; spare weekdays and scarce Saturdays should not be blended into one recovery assumption.
3. Cost a free addition and a waived charge differently
Write down the scope before and after the concession. A free service added to the base offer creates delivery costs; a fee waived for a service already agreed gives up revenue while leaving that service's costs in place. The add-on's advertised price does not settle either comparison.
Adding that service free reduces contribution by $140 compared with delivering the base package alone. That is a useful comparison only if the service really is additional. It does not prove that the customer values it at $450 or that it wins the booking.
If the customer had already agreed to pay $450 for the service and you waive the charge while still delivering it, contribution falls by $450 compared with that paid offer. The $140 delivery cost appears in both offers and is not saved. If any percentage fee falls, include only its verified reduction.
An extra access hour needs the same check. It may trigger another paid hour, a minimum shift, equipment hire or a clash with preparation for another booking. Use the turnover record to check the work and blocked time. A service using already-paid staff can have little additional cash cost yet consume capacity that has a better use.
4. Recover contribution with whole, feasible bookings
This calculation requires positive contribution in both offers. It assumes the additional events have the revised offer's economics, period fixed costs stay unchanged and no other contribution is displaced. Different event sizes or calendar segments need separate estimates.
Using the first illustrative event, eight original bookings contribute $21,600. At $2,118 each, the revised offer needs approximately 10.20 equivalent bookings, or 11 whole bookings, to reach that total. Ten contribute $21,180, leaving a $420 shortfall. Eleven contribute $23,298, before any additional period cost.
If the venue can deliver only ten relevant bookings in the period, the proposed volume cannot recover the old contribution under these assumptions. If eleven require an extra supervisor or another room to open, subtract that new cost from the comparison. A better inquiry conversion rate does not create another compatible date or crew.
If revised contribution is zero, additional identical bookings add no contribution toward a positive old total. If it is negative, they reduce total contribution further. If original contribution is already zero or negative, repairing that offer is a different task from recovering a positive baseline.
5. Check the offer's arithmetic
Use this calculator for a group of identical bookings before and after a price reduction. It models the revenue reduction and the verified variable costs avoided on each revised booking; the avoided-cost input accepts only nonnegative savings. It has no input for added variable service costs.
If the concession adds work or services, calculate the full revised contribution manually, including those extra costs. The tool rounds the equivalent volume up to whole bookings and checks the capacity you enter. Check demand, competing bookings, new period costs and unused-slot decisions separately.
Defaults are the first hypothetical example. Replace every input with the same event scope, cost basis and calendar segment.
6. Record the approved comparison and check the delivered result
Keep the original offer, revised scope and price, avoided-cost evidence, additional staffing or opening costs, blocked interval and competing alternative in the booking record. Name who may approve this exception. A recurring offer needs its own defined eligibility and review; it should not spread to the whole rate card through individual negotiations.
After delivery, compare realized revenue and costs with the approved assumptions. For a campaign, separate bookings that were genuinely additional from those that shifted from another date or would have bought anyway. Treat that distinction as an estimate unless there is supporting evidence; a higher booking count alone does not prove the discount caused it.
Record the reason and known cost if a concession serves a deliberate nonfinancial purpose. Then total the contribution for the affected period and compare it with the fixed-cost plan.