Every soft month produces the same meeting: "let's lower the rate and fill the house." Sometimes that's right. But a rate cut applies to every room you were already going to sell, while the extra demand it buys arrives one uncertain room at a time. The break-even calculation tells you exactly how much occupancy the discount must generate before it stops costing you money — and it's almost always more than people expect.
To keep rooms revenue unchanged after a cut:
Required occupancy = current occupancy × (old ADR ÷ new ADR)
Cut from $150 to $135 at 70% occupancy: 0.70 × 150 ÷ 135 = 77.8%. A "small" 10% discount demands an 11% volume lift just to stand still. If the cut is 20% (to $120), the requirement is 87.5% — a quarter more rooms sold, every night, purely to break even on revenue.
Every additional occupied room costs money — housekeeping, laundry, amenities, breakfast, utilities. Count a variable cost per occupied room and the bar rises:
Required occupancy = current occupancy × (old ADR − variable cost) ÷ (new ADR − variable cost)
Same cut, with a $20 variable cost: 0.70 × (150−20) ÷ (135−20) = 0.70 × 130/115 = 79.1%. The profit break-even is always higher than the revenue one, because the discount is taken on all rooms while each recovery room nets only its contribution margin. This is the number a GM or owner should be shown — revenue-flat flatters the cut.
| Before | After the cut | |
|---|---|---|
| ADR | $150 | $135 (−10%) |
| Occupancy (60 rooms) | 70% → 42 rooms | needs 79.1% → 47.5 rooms |
| Profit-flat requirement | — | +5.5 rooms sold, every night |
The question the formula forces: where are those 5.5 extra nightly rooms coming from? If demand in your market is price-elastic that week (a leisure shoulder season, genuine rate-shopping traffic), maybe they exist. If the month is soft because there's simply no demand — a dead corporate week, an event that moved — no price finds guests who aren't looking, and the cut just re-prices the 42 rooms you were getting anyway. That mistake costs $630 a night in this example.
The free rate-cut break-even calculator on this site computes both break-evens live in your browser. The decision rules around it — when a cut is justified, trigger thresholds, approval limits, and how to unwind one — are in the RM Playbook's pricing-decision SOP, and the fenced alternatives (promotions that actually pay, with the cannibalization math) are in the Rate Strategy Pack.