Quick answer
A festival is worth doing when your expected gross profit comfortably exceeds all its costs: site fee, revenue share, staff, travel, accommodation, power and wastage. Work out your fixed event costs, divide by your gross margin to find break-even sales, then compare that with realistic takings. If break-even needs a near-perfect day, the event is probably too risky.
Key points
- Break-even sales = fixed event costs ÷ gross profit margin.
- Revenue shares reduce your margin; flat fees add to fixed costs.
- Crowd size isn't customer count — estimate serves per hour you can actually deliver.
- Test a bad-weather day, not just a good one.
- Consider value beyond the till: bookings, followers and future events.
Every trader has a story about the festival that looked amazing on paper. Big name, huge crowd, glossy trader pack — and then the site fee, the revenue share, the rain, the three other burger trucks and the four-hour drive home turned it into a very expensive weekend. The fix isn’t to avoid big events. It’s to do ten minutes of maths before you say yes.
Why does break-even matter more than the crowd size?
Because crowd size tells you how many people will be at the event, not how many will buy from you. Your takings are limited by:
- How many people walk past and want what you sell
- How many competitors sell something similar
- How fast you can serve — serves per hour at full pace
- How many hours are actually busy
- The weather
Meanwhile, the costs are mostly fixed the moment you commit. That’s why break-even is the question to ask first.
What’s the break-even formula?
Business Queensland puts it simply: break-even point equals fixed costs divided by gross profit margin. For a festival, that becomes:
Break-even takings = fixed event costs ÷ gross margin
Where:
- Fixed event costs are the costs you’ll pay whether you sell one item or a thousand: site fee, staff wages, travel, accommodation, power and water charges, extra equipment hire, cleaning fees.
- Gross margin is the share of each sale left after variable costs: stock, packaging, card fees and any revenue share the organiser takes.
Step by step: testing an event
Step 1: List the fixed costs. Be thorough:
| Cost | Notes |
|---|---|
| Site fee | Flat fee, paid upfront |
| Bond | Comes back later, but ties up cash |
| Staff | Hours × rate, including set-up and pack-down, plus super |
| Travel | Fuel, tolls, a second vehicle |
| Accommodation | For multi-day or regional events |
| Power, water, waste | Often billed separately |
| Equipment hire | Extra fridges, a cool room, a generator |
| Your time | Even if you don’t pay yourself a wage |
Step 2: Work out your gross margin. Start with 100% of each sale, then take off stock and packaging, card fees and any revenue share. If stock and packaging are around a third of your price and the organiser takes a share of takings, your margin shrinks accordingly.
Step 3: Divide. Fixed costs ÷ gross margin = the takings you need to break even.
Step 4: Sense-check against capacity. Divide break-even takings by your average sale to get the number of serves you need. Then divide that by your realistic serves per hour. If break-even needs you flat out for every trading hour, the event is risky.
Step 5: Test a bad day. Cut expected serves by a third or a half for rain, heat or a quiet crowd. Does it still cover costs?
Want to fund the site fees for the events that pass the test? See if you qualify — quick to fill in, with no credit check for asking.
Illustrative example: a three-day food festival
This example is illustrative — the numbers are made up to show the method.
A bao truck is offered a spot at a three-day regional food festival.
- Site fee: $3,000 (flat)
- Revenue share: none
- Staff: three casuals for three long days, including super — $4,200
- Travel and accommodation: $1,300
- Power and extras: $500
- Fixed costs: $9,000
The bao sell for an average of $16 per order. Stock, packaging and card fees come to roughly 35% of each sale, so the gross margin is about 65%.
Break-even takings = $9,000 ÷ 0.65 ≈ $13,850
That’s about 866 orders over three days, or roughly 290 a day. The truck can serve about 60 orders an hour at full pace. If the event has around seven genuinely busy hours a day, capacity is about 420 orders a day. Break-even needs the truck at about 70% of capacity.
On a good weekend, expected takings might be $20,000 — comfortably profitable. On a wet Saturday, orders might halve that day, dragging the weekend close to break-even. The owner decides it’s worth doing, but books a cheaper local event the following weekend rather than another big regional one.
Now compare a second offer: a flat fee of $1,000 plus a share of takings. At the same sales, the margin drops, but fixed costs fall too. Run both versions. The revenue-share event is often safer on a bad weekend and costlier on a great one.
What else counts besides the till?
Some events are worth doing even at a thin profit because of what they lead to:
- Private bookings from people who tasted your food
- Corporate and wedding enquiries
- Social media followers and email sign-ups
- An invitation back, or to the organiser’s other events
- Brand exposure to a new region
Be honest about these. “Exposure” doesn’t pay the site fee, but a steady flow of wedding bookings might.
How does this fit into the whole season?
Break-even tells you whether a single event is worth doing. It doesn’t tell you whether you can afford all your events at once, because fees are usually due months before the takings arrive. Once you’ve chosen your events, put them into Part 2 of the truck-stop calculator, which maps your bank balance month by month and shows the lowest point. Our page on paying festival site fees upfront explains how traders handle the timing, and event-season cash flow covers funding options that suit lumpy income.
A quick checklist before you pay any fee
- Have I listed every fixed cost, including my own time?
- Have I included the revenue share in my margin?
- Is break-even realistic at my serving speed?
- Does a bad-weather day still roughly cover costs?
- What are the refund terms if the event is cancelled?
- When is each payment due, and can I cover it?
- What’s the value beyond the till?
If you’re adding staff to cope with bigger events, read our guide to hiring casuals for event season before you build the roster.
How do I estimate serves per hour?
Serving speed is the number most traders guess, and it drives the whole calculation. Measure it rather than assuming:
- Time your busiest hour at a recent event or market — count orders through the POS.
- Watch for the bottleneck. Is it the grill, the fryer, the coffee machine, or taking payments? The slowest step sets your pace.
- Adjust for staffing. Four people on a big event may serve faster than two, but only if the kitchen layout lets them.
- Adjust for menu complexity. A smaller festival menu often lifts serves per hour.
Once you know your real capacity, you’ll see which events are limited by the crowd and which are limited by you. If it’s you, a second fryer, a faster card terminal or a trimmed menu might be worth more than a bigger event. See generator and equipment finance for funding upgrades that lift capacity.
Does the same maths work for weekly markets?
Yes, and it’s even more useful, because you repeat the decision every week. For a regular market, the fixed costs are smaller — a stall fee, a few hours of help, fuel — so break-even is usually easier to reach. The risk is different: a market that’s slowly declining can drain you a little every week without anyone noticing. Track takings per market over a season and compare each one against its break-even. Drop the ones that consistently fall short and use the freed-up weekends for better markets or private bookings.
Book the right events, then fund the timing
Doing the maths turns event season from a gamble into a plan. Once you know which events are worth it, the remaining challenge is paying for them months before they pay you back. Tell us about your season and what you need. It’s a quick form with no credit check attached, and a real person reviews your details — we don’t pass them to a crowd of lenders.
Please fill in the form accurately, including your usual event takings. It helps us find the right option first time.
Frequently asked questions
How do I calculate break-even for a festival stall?
Add up the event's fixed costs — site fee, staff, travel, accommodation, power and extras. Work out your gross profit margin after stock and packaging (and after any revenue share). Divide the fixed costs by the margin. That's the takings you need just to cover the event.
What's a good safety margin above break-even?
There's no official figure. The more your break-even depends on perfect weather and a full crowd, the riskier it is. Many traders want expected takings well above break-even before they commit.
How do I estimate how many customers I'll serve?
Start from your service speed — serves per hour at full pace — and multiply by realistic busy hours. Crowd size sets the ceiling, but your kitchen and queue usually set the real limit.
Should I include my own wages?
Yes, if you want an honest answer. At least include the value of your time. An event that only breaks even when you work for free isn't really breaking even.
Is a revenue-share event better than a flat fee?
It shifts the risk. A revenue share costs less if the day's a washout but more if it's a blockbuster. Run the numbers both ways.