Two calculators I use in my own catering business. Free, no sign-up needed. Nothing you type leaves your browser.
NCASS's rule of thumb: an event is worth doing if you expect to take at least four times the pitch fee. Put in your numbers to see where this one lands.
For private and corporate bookings where the client pays you. Add up what the job costs you, set your margin, and get a price per head you can send with confidence.
Five checked corporate, wedding and trading opportunities on the 1st of each month. Free.