📝 Purchasing, suppliers & strategy · ⏱️ 2 min read

How do I calculate my margin when buying fruit at a fruit auction versus a large distributor?

📝 KitchenNmbrs · updated 13 Mar 2026

A restaurant owner recently discovered their "cheap" auction strawberries actually cost 15% more than distributor prices after factoring in waste and transport. Fruit from auctions appears 30-50% cheaper upfront, but hidden costs tell a different story. You need the real numbers to make smart sourcing decisions.

What does fruit really cost? The hidden expenses

The sticker price isn't your true cost. Both auctions and distributors pile on extras that eat into your margins.

💡 Example: Buying apples

Auction: €1.20/kg + €0.30 transport + €0.15 waste = €1.65/kg

Distributor: €1.80/kg + €0.05 delivery = €1.85/kg

Difference: €0.20/kg advantage for distributor

Calculate your actual purchase price per channel

Fair comparisons require all costs, not just the base price.

Costs at fruit auction

  • Base price: Your bid per kilo
  • Auction fees: 3-8% of purchase value
  • Transport: Self-pickup or delivery charges
  • Time investment: Early mornings, waiting, selection process
  • Quality waste: 10-25% unusable product
  • Storage costs: Higher inventory means increased cooling expenses

Costs at distributor

  • Base price: Catalog price per kilo
  • Delivery costs: Usually free above minimum orders
  • Quality guarantee: Returns accepted for poor quality
  • Time savings: Quick ordering via app or phone
  • Reduced waste: 2-8% due to better quality control

⚠️ Note:

Always include waste in your cost calculations. If 20% of your fruit hits the bin, your real per-kilo price jumps 25% higher.

Formula for actual cost price

Use this calculation to compare both channels accurately:

Real cost price = (Base price + Extra costs) ÷ (100% - Waste%)

💡 Calculation example: Pears

Auction:

  • Base price: €0.90/kg
  • Auction fees (5%): €0.045/kg
  • Transport: €0.25/kg
  • Waste: 18%

Calculation: (€0.90 + €0.295) ÷ 0.82 = €1.46/kg

Distributor:

  • Base price: €1.35/kg
  • Delivery: €0/kg (free from €150)
  • Waste: 5%

Calculation: €1.35 ÷ 0.95 = €1.42/kg

Distributor wins by €0.04/kg

Impact on your food cost and margin

A €0.20 per kilo difference looks tiny but compounds fast in your food cost percentage. This pattern we see repeatedly in restaurant financials - small per-unit differences create significant monthly variances.

💡 Impact on fruit salad (€8.50)

Usage: 200g fruit per portion

  • Auction: €1.46/kg → €0.29 per portion
  • Distributor: €1.42/kg → €0.28 per portion

Food cost difference: 0.1% of your selling price

At 1000 portions monthly: €10 difference

Which channel should you pick?

Go with the auction if:

  • You're buying large volumes (50+ kg per type)
  • You've got time for selection and transport
  • Your team knows how to assess quality
  • You want seasonal products at peak pricing

Choose the distributor if:

  • You need reliable quality
  • Time-saving matters more
  • You're buying smaller volumes
  • Storage space is limited for large batches

Mix both channels for maximum margin

Smart kitchens use both sources strategically. Seasonal fruit from auctions powers your specials, while distributor fruit handles your everyday menu items.

How do you compare real costs? (step by step)

1

Gather all cost prices

Write down the base price per kilo from both channels. Add all extra costs: transport, auction fees, delivery. Don't forget any cost item.

2

Measure your actual waste percentage

Weigh what you throw away from each channel for a week. Divide this by your total purchase and multiply by 100 to get your waste percentage.

3

Calculate the real cost price

Use the formula: (Base price + Extra costs) ÷ (100% - Waste%). This gives you the real price per usable kilo of fruit.

✨ Pro tip

Track your fruit waste by supplier for 14 days straight, noting which items spoil fastest from each source. You'll spot clear patterns that'll guide your next month's purchasing decisions.

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

Is the auction always cheaper than a distributor?

Not necessarily. Waste and extra costs can make auction fruit more expensive than distributor prices. Always calculate total costs including your time and transport expenses.

How much waste is normal for auction fruit?

Expect 10-25% depending on season and your selection skills. Experienced buyers typically keep waste around 12-15% through careful picking.

Can I use both channels simultaneously?

Absolutely, and many restaurants do exactly this. Standard products come via distributor for consistency, seasonal specials via auction for optimal pricing.

How often should I recalculate these cost prices?

Monthly minimum, since fruit prices swing heavily with seasons. Adjust your menu pricing immediately if major cost changes occur.

What if my waste percentage runs much higher than expected?

Examine your storage conditions and selection techniques first. High waste makes even cheap fruit expensive, so consider supplier training or switching sources.

Do auction fees vary significantly between different markets?

Yes, fees range from 3-8% of purchase value depending on the specific auction house. Factor these into your calculations since they can swing your final costs considerably.

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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