The $30,240 clause in your hotel contract

Let me show you the clause that costs planners the most money, because almost nobody does this math until it is too late.

Your contract says 80% attrition on a 200-room-night block. That means you owe the hotel for 160 room nights whether your attendees show up or not. At $189 a night, that is $30,240 of exposure.

Room nights, not rooms

Now the part people miss: attrition is usually calculated on total room nights, not rooms. Every early departure and no-show chips away at your pick-up number. Planners count heads. Hotels count room nights. If your mental model is heads, you will underestimate your exposure every single time, and you will find out at the final invoice when there is nothing left to negotiate.

The concessions you lose too

And the concessions, the complimentary suite, the free AV, the breakfast buyout, are almost always tied to hitting a percentage of that same block. Miss the number and you do not just pay attrition. You lose the perks too. The real cost of a missed block can run well past the attrition figure once the lost concessions are counted.

This is the part that stings the most, because it is avoidable. The concessions were negotiated. They were yours. They slipped away because nobody was watching the pick-up number in real time.

Track it from day one

This is why I track pick-up weekly from the day the block opens, not the month before the event. By the time the hotel sends you the warning letter, your options are gone.

Weekly tracking gives you time to act. You can nudge the stragglers, extend the cutoff, or adjust the outreach to the group while there is still runway. Monthly tracking gives you a report. There is a difference, and it is worth thousands.

Your planner should be doing this math in her sleep.