📝 Specific kitchen types & concepts · ⏱️ 2 min read

How do I calculate the margin on a retail sale of...

📝 KitchenNmbrs · updated 07 Apr 2026

Quick answer
Picture this: you've just sold your last jar of homemade strawberry jam at the farmer's market, but you're not sure if you actually made money. Most home producers forget hidden costs like jars, labels and their valuable time.

Picture this: you've just sold your last jar of homemade strawberry jam at the farmer's market, but you're not sure if you actually made money. Most home producers forget hidden costs like jars, labels and their valuable time. Here's how to calculate your real profit margin on homemade products.

Gather all costs

For accurate margin calculations, you need every cost, not just ingredients. Too many producers overlook the 'invisible' expenses and believe they're earning more than reality shows.

? Example: Homemade strawberry jam

For 10 jars of 250ml:

  • Strawberries (2.5 kg): €12.50
  • Sugar (1 kg): €1.20
  • Jars + lids (10 pieces): €8.00
  • Labels: €2.00
  • Gas/electricity (2 hours cooking): €1.50

Total costs: €25.20

Direct product costs

These expenses tie directly to your product creation:

  • Ingredients: Everything that goes inside (fruit, sugar, vinegar, oil, spices)
  • Packaging: Jars, lids, bags for pesto
  • Labels and stickers: For branding and ingredient lists
  • Energy: Gas/electricity for cooking and sterilizing

⚠️ Note:

Always calculate using wholesale ingredient prices, not retail supermarket costs. Larger quantities typically offer better deals.

Indirect costs

These expenses exist but don't directly attach to single products:

  • Time: Shopping, preparing, filling, labeling
  • Transport: Gas to markets or customer deliveries
  • Market costs: Stand fees, permits
  • Equipment depreciation: Pans, mixers, scales

? Example: Valuing time

Pesto production takes 3 hours (shopping, making, filling). At €15/hour value:

  • Time costs: 3 × €15 = €45
  • For 20 jars of pesto = €2.25 per jar extra

This calculation shows whether the effort pays off.

Margin calculation

Now you can determine your actual margin. The formula's straightforward:

Margin % = ((Selling price - Total costs) / Selling price) × 100

? Example: Jam margin

Strawberry jam from our first example:

  • Total costs: €25.20 for 10 jars = €2.52 per jar
  • Selling price: €5.50 per jar
  • Profit per jar: €5.50 - €2.52 = €2.98

Margin: (€2.98 / €5.50) × 100 = 54.2%

Healthy margins for homemade products

Based on real restaurant P&L data, different products need varying margins:

  • Jam and jelly: 50-70% margin (high added value)
  • Pesto and tapenades: 40-60% margin (pricier ingredients)
  • Sauces: 45-65% margin (varies by complexity)
  • Chutneys: 50-70% margin (extended shelf life)

Margins below 40% don't justify your time and effort investment.

Pricing strategy

Your selling price depends on sales channels:

  • Farmers market: Premium pricing through storytelling and quality
  • Online sales: Include shipping in final price
  • To restaurants: Lower prices, higher volumes
  • Local shops: Account for their 30-50% retail markup

⚠️ Note:

Shops need 30-50% margin to survive. Keep your wholesale price low enough for their markup while maintaining profitability.

How do you calculate the margin on homemade products?

1

Make a cost overview

Write down all costs: ingredients, packaging, labels, energy and time. Don't forget anything, not even the small amounts. This becomes your total cost price per product.

2

Determine your selling price

Look at what comparable products cost at markets or in shops. Take into account your sales channel - markets can have higher prices than wholesale.

3

Calculate your margin

Subtract your total costs from your selling price. Divide the result by your selling price and multiply by 100 for the percentage. Aim for at least 40% margin.

✨ Pro tip

Track your actual production time for 3 batches before setting final prices. Most producers underestimate labor by 40-50%, which kills profitability.

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

Should I include my time in the cost price?
Absolutely, or you won't know if it's worthwhile. Value your time at minimum €12-15 per hour, otherwise you're earning below minimum wage.
What is a good margin for homemade jam?
Target 50-70% margin on jam. Ingredients cost relatively little and you're adding significant value through production and packaging.
How do I calculate energy costs for cooking?
Estimate roughly €0.75 per hour for standard cooktop usage. Two hours of jam cooking equals about €1.50 in energy expenses.
Should I pass on VAT in my selling price?
Under €20,000 annual turnover, you're VAT-exempt. Above that threshold, you must add 9% VAT on food products.
What if my margin comes out too low?
Increase selling prices, source cheaper ingredients, or produce larger batches to spread fixed costs. Sub-40% margins aren't worth pursuing.
How do I calculate packaging costs per product?
Divide total jar and label costs by product quantity. Example: €0.80 jar plus €0.20 label equals €1.00 packaging cost per unit.
Can I use cheaper ingredients to boost margins?
Yes, but maintain quality standards. Bulk purchasing often reduces costs without compromising taste or safety. Test recipes with different suppliers first.

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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.

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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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