Formula
Role staff = ceiling(guests ÷ role ratio)
Live staff = ceiling(sum of role staff × (1 + relief coverage))
Labor hours = live staff × event hours + setup crew × setup/teardown hours
What the result means
The main result is the scheduled people across live and setup roles. Total labor hours reveals the larger cost driver when shifts are long, while the role breakdown shows where staffing assumptions have the most impact.
This is a planning estimate. Venue rules, licensing, crowd risk, alcohol service, emergency plans, contracts, and local law may impose different minimum staffing.