Formula
Ticket revenue = paid attendees × average net ticket revenue
Variable budget pool = ticket revenue − fixed costs − target surplus
Budget per guest = variable budget pool ÷ (paid + complimentary attendees)
What the result means
A positive per-guest budget is the maximum average variable cost that preserves the selected surplus. A negative value means ticket revenue does not yet cover fixed costs and the target surplus.
Planning estimate only. Confirm vendor terms, contracts, venue rules, accessibility requirements, and local safety limits before committing.