Most caterers expect a smooth event with perfect attendance, but reality hits differently. You prep for 100 guests at €35 each, then watch only 80 people walk through the door. Your carefully planned margins just evaporated.
Why fewer guests destroys your margin
Catering operates on per-person pricing, but your costs don't scale down instantly. You've already purchased ingredients for the expected headcount, and your fixed expenses remain unchanged. Fewer guests creates a brutal squeeze:
- Same ingredient costs, lower revenue
- Same staff costs, lower revenue
- Same transport costs, lower revenue
Your margin doesn't just shrink—it collapses.
💡 Example:
Catering for 100 people at €35 per person:
- Expected revenue: €3,500
- Food cost (30%): €1,050
- Staff: €800
- Transport/other: €200
Expected profit: €1,450
But only 80 guests show up:
⚠️ Actual situation:
- Actual revenue: €2,800 (80 × €35)
- Food cost remains: €1,050 (you already bought it)
- Staff remains: €800
- Transport remains: €200
Actual profit: €750 (€700 less!)
Calculate your new margin
Your margin calculation shifts to actual revenue, not projected numbers:
New margin % = ((Actual revenue - All costs) / Actual revenue) × 100
💡 Calculation:
Actual margin: (€750 / €2,800) × 100 = 26.8%
Expected margin was: (€1,450 / €3,500) × 100 = 41.4%
Difference: 14.6 percentage points lower!
The actual food cost per person
Your per-person food cost spikes dramatically:
Actual food cost per person = Total ingredient costs / Number of actual guests
💡 Example:
€1,050 ingredient costs / 80 guests = €13.13 per person
Planned was: €1,050 / 100 = €10.50 per person
€2.63 more per person than planned
Most kitchen managers discover too late that this cost creep can turn profitable events into break-even disasters. The math is unforgiving.
How to prevent this
Smart caterers build protective measures into their operations:
- No-show clause: Client pays minimum 90% of ordered number
- Final confirmation: Exact number 48 hours in advance
- Flexible purchasing: Buy as late as possible where you can
⚠️ Note:
Make agreements about no-shows BEFOREHAND. It's too late to recover costs afterwards.
What to do if it happens anyway
If you're already facing this situation:
- Calculate your actual margin as shown above
- See if you can use leftover ingredients
- Learn from it for next time: tighter agreements
- Consider a surcharge for last-minute changes
Tools like a food cost calculator can help you quickly model what different guest numbers mean for your margin before you commit to the event.
How do you calculate the new margin? (step by step)
Add up all costs incurred
Calculate how much you actually spent on ingredients, staff, and other costs. This stays the same regardless of the number of guests.
Calculate actual revenue
Multiply the actual number of guests by your price per person. This becomes your new revenue base.
Calculate the new margin
Subtract all costs from actual revenue and divide by actual revenue. Multiply by 100 for the percentage.
✨ Pro tip
Always run margin calculations for 3 scenarios before accepting any catering job: expected attendance, 15% fewer guests, and 25% fewer guests. This 5-minute exercise reveals your real risk exposure.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
Can I recover costs when fewer guests show up?
Only if you've agreed to this beforehand in your contract. Always make agreements about minimum numbers or no-show costs before the event.
How much buffer should I build in for no-shows?
Many caterers plan for 5-10% no-show and build this into their pricing. For large corporate events, this can go up to 15%.
What do I do with leftover ingredients?
See if you can use them for other events, sell them to colleagues, or incorporate them into your regular menu. Store shelf-stable products for future catering jobs.
How do I prevent this at future events?
Request final confirmation 48-72 hours in advance, make agreements about minimum numbers, and build a small buffer into your pricing. Consider charging a deposit that covers your fixed costs.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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