🎪 Budget an Event Before You Book Anything

I run events and I only find out whether they worked afterwards. Build me an event budget calculator. Let me enter fixed costs as separate lines such as venue hire, equipment, marketing and speaker fees, and per-head costs such as catering, materials and staffing ratios. Enter expected attendance and ticket price. Show total cost, total revenue, profit or loss, break-even attendance and the break-even ticket price at expected attendance. Add a contingency percentage that I set based on how far ahead I am booking. Show a table of profit at several attendance levels so I can see the shape of the risk. Add an AI agent that models a disappointing turnout, tells me at what point I should cancel or downsize the venue, and by when that decision has to be made. Automate a scheduled reminder at each decision deadline and a weekly budget update as real costs are recorded. Two logins: an organiser who builds budgets, and an owner who approves spend.