You calculate the cost per person of a brunch buffet by adding up all ingredient costs and dividing by the number of guests. Many hospitality entrepreneurs forget costs like bread, butter, jam and drinks, causing them to lose money unknowingly. In this article you'll learn step-by-step how to calculate a realistic cost price including all hidden costs.
Why cost per person is crucial
With a brunch buffet you pay upfront based on expected number of guests. If you underestimate your cost price, you lose money on every guest that shows up. Overestimating means you'll be too expensive for the market.
⚠️ Note:
Always calculate with 10-15% more guests than expected. People often bring someone along or show up unexpectedly. Better to have leftovers than run short.
Inventory all ingredient categories
A brunch buffet consists of more than you think. Don't forget any category:
- Bread and pastries: various bread types, croissants, muffins
- Savory toppings: cheese, cold cuts, salmon, hummus
- Sweet spreads: jam, honey, chocolate spread, peanut butter
- Hot dishes: scrambled eggs, bacon, sausage, fried potatoes
- Fresh produce: fruit, vegetables, salad
- Dairy: milk, yogurt, quark, butter
- Beverages: coffee, tea, juices, water
- Other: oil, spices, salt, pepper
Determine quantities per person
Use these guidelines as a basis for your calculation:
💡 Standard quantities per person:
- Bread: 3-4 slices (120-150 grams)
- Cold cuts: 80-100 grams
- Cheese: 60-80 grams
- Butter/spread: 20 grams
- Fruit: 150 grams
- Hot dishes: 200-250 grams total
- Coffee: 2-3 cups per person
Cost price calculation with example
Here's how you calculate the cost price for 50 people:
💡 Example brunch buffet 50 people:
Bread and pastries:
- 25 loaves at €2.50 = €62.50
- 50 croissants at €0.60 = €30.00
Toppings and dairy:
- Cold cuts (4kg): €48.00
- Cheese (3kg): €45.00
- Butter, jam, spreads: €25.00
Hot dishes:
- Eggs, bacon, sausage: €65.00
- Potatoes, vegetables: €30.00
Other:
- Fruit and salads: €40.00
- Coffee, tea, juices: €35.00
- Oil, spices, other: €15.00
Total ingredients: €395.50
Cost price per person: €395.50 / 50 = €7.91
Waste and unforeseen costs
Always add 10-15% extra for waste and unforeseen costs. Not everything gets eaten and something always goes wrong.
💡 Include waste:
Cost price €7.91 + 15% waste = €7.91 × 1.15 = €9.10 per person
Actual cost price: €9.10 per person
From cost price to selling price
For a healthy margin you usually work with 25-30% food cost. That means your ingredients should cost a maximum of 30% of your selling price.
Formula: Minimum selling price = Cost price / (Desired food cost / 100)
💡 Selling price calculation:
Cost price: €9.10 per person
Desired food cost: 28%
Minimum price excl. VAT: €9.10 / 0.28 = €32.50
Selling price incl. 9% VAT: €32.50 × 1.09 = €35.43
Seasons and suppliers
Account for seasonal fluctuations in your cost price. Fruit and vegetables are often more expensive in winter. Update your cost price at least monthly based on current purchase prices.
⚠️ Note:
Check your supplier invoices monthly. Prices can quietly go up without you noticing. A 10% increase in your purchases means directly less profit.
Digital tracking vs. Excel
Many entrepreneurs use Excel for cost price calculations, but that quickly becomes messy with buffets containing many ingredients. A system like KitchenNmbrs automatically tracks what each ingredient costs and calculates your cost price per person directly.
How do you calculate brunch buffet cost price? (step by step)
Make a complete ingredient list
Write down ALL ingredients you need: bread, toppings, hot dishes, fruit, beverages and even butter and jam. Don't forget spices, oil and coffee either. The more complete your list, the more accurate your cost price.
Calculate quantities per person
Use standard quantities: 120g bread, 80g cold cuts, 60g cheese per person. Multiply by your expected number of guests plus 10-15% extra for unforeseen. Add up all ingredient costs.
Divide total costs by number of people
Divide your total ingredient costs by the number of guests. Add 15% waste on top. This is your actual cost price per person. For your selling price divide by your desired food cost percentage (usually 25-30%).
✨ Pro tip
Always check your 5 most expensive ingredients separately. If salmon, cheese and cold cuts together make up 60% of your cost price, that's where you can save the most by smarter purchasing or slightly smaller portions.
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
What percentage waste should I calculate for a brunch buffet?
Calculate 10-15% waste for buffets. Not everything gets eaten and there's always leftovers. For hot dishes like scrambled eggs it can even be 20% because you need to keep making more during service.
Should I include VAT in my cost price calculation?
No, always calculate excl. VAT. You do pay VAT to suppliers, but you also collect VAT from guests. For cost price calculation use the price excl. VAT to calculate your margin correctly.
How often should I update my cost price?
At least monthly, but check your main ingredients weekly. Prices for meat, cheese and fruit can change quickly. For seasonal products sometimes update weekly.
What if fewer guests show up than expected?
Then you have higher costs per person because you spread fixed costs over fewer people. That's why it's smart to agree on a minimum number of guests or have a cancellation policy.
Can I charge the same cost price for weekend and weekday brunch?
Usually yes, but watch out for weekend surcharges from suppliers and higher staff costs. Some entrepreneurs charge 5-10% extra for weekend brunch because of these extra 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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