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📝 Anyone who sells food · ⏱️ 2 min read

How do I calculate the financial difference between working with staff or just by myself?

📝 KitchenNmbrs · updated 14 Mar 2026

87% of restaurant owners underestimate the true cost difference between solo operations and hiring staff. This critical decision shapes your entire profit structure. Most owners rely on gut instinct, but the numbers reveal surprising truths about profitability.

The real cost of staff

That €12-per-hour employee actually costs you €18-20 per hour. Employer contributions, sick leave, and turnover add up fast. Then there's scheduling, training, and endless paperwork eating your time.

💡 Example:

Kitchen assistant €12/hour, 30 hours per week:

  • Gross salary: €1,560/month
  • Employer contributions (25%): €390/month
  • Sick leave (5%): €78/month
  • Training and administration: €100/month

Real costs: €2,128/month

What does your own time cost?

Your hours aren't free, even without a paycheck. Every minute you're prepping vegetables is time you're not growing your business. Calculate your entrepreneurial hourly rate and factor it into your costs.

⚠️ Watch out:

Most entrepreneurs ignore their own time value. This makes solo work appear cheaper, but you're missing the opportunity cost of not focusing on revenue-generating activities.

Compare productivity and revenue

Staff means more covers and longer hours. But does the extra revenue justify the costs? From years of working in professional kitchens, I've seen owners shocked by how much additional business one good team member can generate.

💡 Example:

Restaurant with 40 covers per evening:

  • Alone: 6 days open, 240 covers/week
  • With staff: 7 days open, 280 covers/week
  • Extra revenue: 40 × €28 = €1,120/week
  • Extra staff costs: €532/week

Net benefit: €588/week

Factor in quality and consistency

Solo operations are fragile. You get sick? Revenue stops. Peak rush hits? Guests wait forever. Staff provides backup, but training takes months to achieve consistency.

  • Illness losses: how much revenue vanishes per sick day?
  • Vacation coverage: close entirely or hire expensive temps?
  • Rush periods: how many frustrated guests walk out?
  • Standards: can anyone else execute your dishes properly?

The break-even calculation

Total up every cost and weigh against staff-enabled revenue gains. Here's your formula: Break-even point = Extra staff costs / (Average bill × Extra covers)

💡 Example:

Extra staff costs €2,128/month at average bill €25:

  • Break-even: €2,128 ÷ €25 = 85 extra covers/month
  • That's roughly 3 extra guests per day

Achievable? Then hiring staff makes financial sense

How do you calculate the financial difference? (step by step)

1

Calculate the real staff costs

Add to the gross salary: employer contributions (25%), sick leave (5%), training and administration (€100-200/month). These are your real costs per employee.

2

Determine your own hourly rate

Calculate what your time is worth as an entrepreneur. Take your desired annual income divided by 1,800 working hours. This is the opportunity cost of your own time.

3

Measure extra revenue with staff

Calculate how many more covers you can serve with help. Multiply this by your average bill to determine the extra revenue.

4

Subtract costs from extra revenue

Extra revenue minus extra staff costs = net benefit. Is this positive? Then hiring staff makes financial sense. Don't forget to factor in continuity and quality.

✨ Pro tip

Test your numbers with a 2-week trial employee during your busiest period. Track exactly how many additional covers you serve - most owners discover they need just 4-5 extra guests daily to break even.

Calculate this yourself?

In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.

Try KitchenNmbrs free →

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Frequently asked questions

What are the hidden costs beyond an employee's hourly wage?

Beyond the €12 hourly wage, add 25% employer contributions, 5% sick leave coverage, plus training time and administrative overhead. Your real cost hits €18-20 per productive hour.

How do I calculate my own value as an entrepreneur per hour?

Divide your target annual income by 1,800 working hours. At €50,000 yearly, that's €28 per hour you're sacrificing by doing kitchen work instead of business development.

What's the minimum extra revenue needed to justify hiring staff?

For a €2,000 monthly employee cost, you need roughly 80 additional covers monthly at €25 average spend. That breaks down to just 3 extra guests daily.

How do I account for my own sick days and vacation time?

Calculate lost revenue for closure days. At €800 daily revenue, one sick day costs €800 plus potential customer loss. Factor 10-15 closure days annually into your solo operation costs.

Should I hire full-time or part-time staff first?

Start part-time during peak hours to test the revenue impact. You'll see if extra covers justify costs before committing to full-time wages and benefits.

How do I measure staff productivity versus my own output?

Track covers per hour and order accuracy. Good staff often handle 15-20% more volume while maintaining quality, but require 2-3 months training investment.

What if my staff member quits after expensive training?

Budget €500-800 replacement costs per position annually. High-turnover roles need this factored into your break-even calculations from day one.

ℹ️ This article was prepared based on official sources and professional expertise. While we strive for current and accurate information, the content may differ from the most recent regulations. Always consult the official authorities for binding standards.

📚 Sources consulted

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.

JS

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.

🏆 8 years kitchen manager at 1NUL8 Group Rotterdam
Expertise: food cost management HACCP kitchen management restaurant operations food safety compliance

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