Nearly 40% of corporate cafeterias exceed their monthly food budget due to poor prime cost tracking. Prime cost combines your food expenses with labor costs - your two biggest operational expenses. For cafeterias operating on fixed meal budgets, maintaining a prime cost between 60-75% of revenue determines profitability.
What exactly is prime cost?
Prime cost breaks down into two core components:
- Food cost: all ingredients and beverages
- Labor cost: wages, employer contributions and temporary staffing agency costs for kitchen staff
This metric reveals your operational efficiency better than any other calculation. High prime costs mean you're bleeding money on every meal served.
💡 Example:
Corporate cafeteria serving 200 meals daily at €6.50 each:
- Daily revenue: 200 × €6.50 = €1,300
- Food cost: €390 (30%)
- Labor cost: €455 (35%)
Prime cost: €845 (65% of revenue)
Calculate food cost for cafeterias
Tally every ingredient cost per meal. Cafeteria meals typically include:
- Main course (meat/fish/vegetarian)
- Vegetables and side dishes
- Sauce and seasonings
- Bread or other carbohydrates
- Optional soup or salad
⚠️ Watch out:
Hidden costs like cooking oil, salt, pepper, and fresh herbs add €0.30-0.50 per meal. Don't overlook these small expenses.
Calculate labor cost
Labor expenses extend beyond basic wages:
- Gross wages: all kitchen staff
- Employer contributions: employer payroll taxes (approximately 25% of gross wage)
- Temporary staffing agency costs: if you hire flexible workers
- Holiday pay and 13th month bonus
💡 Example labor cost:
Cafeteria with 2 chefs working 8-hour shifts:
- Chef 1: €18/hour × 8 hours = €144
- Chef 2: €16/hour × 8 hours = €128
- Employer contributions (25%): €68
Total labor cost: €340 per day
Calculate prime cost percentage
The formula's straightforward:
Prime cost % = (Food cost + Labor cost) / Revenue × 100
Cafeteria benchmarks:
- 60-65%: Excellent
- 65-70%: Good
- 70-75%: Acceptable
- Above 75%: Too high, immediate action needed
💡 Complete calculation:
Cafeteria serving 200 meals at €6.50:
- Revenue: €1,300
- Food cost: €390 (30%)
- Labor cost: €455 (35%)
- Prime cost: €845
Prime cost %: €845 / €1,300 × 100 = 65%
What if your prime cost is too high?
Three strategies to reduce prime cost:
- Reduce food cost: negotiate better supplier rates, minimize waste, optimize recipes
- Streamline labor cost: improve scheduling, eliminate bottlenecks, create efficient workflows
- Boost revenue: serve more meals without adding staff
⚠️ Watch out:
Cafeterias can't arbitrarily increase meal prices. Focus on cost reduction and operational efficiency rather than revenue increases.
Track prime cost in practice
Monitor your prime cost weekly for accurate insights:
- Total all weekly purchases
- Calculate complete labor costs (including employer contributions)
- Divide by revenue from the same period
After managing kitchen operations for nearly a decade, I've found that automated tracking systems prevent calculation errors and save hours of manual work each week. Tools like food cost calculators can handle these calculations automatically.
Calculate prime cost for your cafeteria (step by step)
Calculate your food cost per meal
Add up all ingredient costs: main course, vegetables, side dishes, sauces, seasonings and oil. Don't forget small costs like salt, pepper and fresh herbs.
Calculate your total labor cost per day
Add up gross wages of all kitchen staff, plus 25% for employer contributions. Add temporary staffing agency costs if you use flexible workers.
Calculate your prime cost percentage
Add food cost and labor cost together. Divide this by your daily revenue and multiply by 100. A good prime cost for cafeterias is between 60-75%.
✨ Pro tip
Track your prime cost separately for your 3 highest-volume menu items every 2 weeks. These dishes drive 60-70% of your costs and reveal optimization opportunities faster than overall averages.
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 is a good prime cost for a corporate cafeteria?
Prime cost between 60-75% works for most cafeterias. Anything below 65% is excellent performance, while above 75% requires immediate cost reduction measures.
Should I include cleaning staff in labor cost?
No, only kitchen staff directly preparing meals count toward prime cost. Cleaning, service, and management represent separate operational expenses.
How often should I calculate prime cost?
Weekly tracking provides the most actionable insights and allows quick adjustments. Monthly calculations are the absolute minimum for effective cost control.
What if my prime cost exceeds 80%?
You're losing money on every meal served. Immediately audit your food cost (should stay under 35%) and redesign workflows to reduce labor inefficiencies.
Do I count prep cooks who work across multiple meal services?
Yes, but allocate their hours proportionally across each service period. If a prep cook spends 3 hours on lunch prep out of 8 total hours, assign 37.5% of their daily wage to lunch prime cost.
How do I handle seasonal staff fluctuations in prime cost calculations?
Calculate prime cost separately for high and low seasons, then create blended annual targets. Summer temps might push your labor cost up 5-8% during peak periods.
📚 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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