73% of delivery restaurants underestimate their true costs by failing to factor in customer discounts properly. You need to account not only for platform fees and packaging costs, but also the impact of discounts on your profitability. Here's how to calculate the actual margin on delivery meals with customer-specific discounts.
Why margin calculation is different for delivery
Delivery adds multiple cost layers that don't exist with dine-in service. Platform fees, packaging costs, and delivery expenses stack on top of your standard food cost. Customer discounts complicate things further.
- Platform fees: 15-30% of order value
- Packaging costs: €0.50-€2.00 per order
- Delivery costs: often passed on to customer, but sometimes subsidized
- Discounts: direct impact on your net revenue
The complete margin formula for delivery
For accurate margin calculation, include all cost components:
Net margin = (Net order value - Food cost - Packaging costs - Platform fee - Delivery subsidy) / Net order value × 100
💡 Example:
Order from regular customer with 15% discount:
- Menu price: €25.00
- Discount 15%: -€3.75
- Net order value: €21.25
- Food cost: €7.50
- Packaging costs: €1.20
- Platform fee (20%): €4.25
Margin: (€21.25 - €7.50 - €1.20 - €4.25) / €21.25 = 38.8%
The impact of discounts on your break-even
Discounts slash your net revenue while costs remain unchanged. Your margin drops faster than the discount percentage suggests.
⚠️ Watch out:
A 15% discount doesn't mean your margin drops by 15%. Due to fixed costs (packaging, platform), your margin often drops by 20-25%.
Comparing different discount strategies
From years of working in professional kitchens, I've seen how different discount methods impact margins differently:
- Percentage discount: Simple, but margin drops more than discount percentage
- Free delivery: You absorb delivery costs, customer gets the benefit
- Fixed euro discount: Impact varies with order size
- Buy 2 get 1 free: Higher order value, but lower margin per item
💡 Comparison of discount types:
€30 order with different discounts:
- 15% discount: €25.50 net, margin drops from 45% to 32%
- Free delivery (€2.99): €30 net, margin drops from 45% to 35%
- €5 discount: €25 net, margin drops from 45% to 29%
Minimum order value for profitable discounts
Calculate per discount type what your minimum order value needs to be to stay profitable. This shapes your discount strategy.
Minimum order value = (Food cost + Packaging costs + Platform fee) / (1 - Desired margin%) / (1 - Discount percentage)
Customer value vs. discount costs
Regular customers deliver higher lifetime value. Calculate whether discount costs outweigh customer retention benefits:
- Average order frequency per month
- Average order value without discount
- Expected customer retention due to discount
- Total discount costs per year
💡 Customer value calculation:
Regular customer orders 2× per month, €25 average:
- Annual revenue without discount: €600
- With 15% discount: €510
- Discount costs: €90 per year
- If customer leaves otherwise: you lose €510 revenue
Discount ROI: €510 / €90 = 5.7× return
Tools for margin calculation on delivery
Manual calculations get complex quickly with varying discounts and platform fees. A food cost calculator helps automatically determine your actual margin per order, including all delivery costs and discounts.
How do you calculate the margin on delivery orders with discounts?
Gather all order data
Note the menu price, discount percentage, and net order value after discount. Don't forget to process VAT correctly (9% on food).
Calculate all additional costs
Add up food cost, packaging costs, and platform fee. Platform fees are usually calculated on the net order value (after discount).
Apply the margin formula
Subtract all costs from the net order value and divide by the net order value. Multiply by 100 for the percentage.
✨ Pro tip
Track your discounted delivery margins weekly for the first 3 months after implementing any loyalty program. Early data reveals which discount levels actually drive repeat orders versus those that just eat into profits.
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 calculate platform fees on the price before or after discount?
Most platforms calculate their fee on the net order value (after discount). Check this with your platform, as it makes a difference in your margin calculation.
What maximum discount percentage can I give and still make a profit?
This depends on your normal margin. With a standard delivery margin of 40%, you can usually give a maximum of 20-25% discount without making a loss.
How do I calculate whether a loyalty program is profitable?
Compare the total discount costs per year with the extra revenue you retain through customer retention. A good ROI is at least 3:1.
Should I include delivery costs in my margin calculation?
Only if you pay the delivery costs yourself (free delivery). If the customer pays delivery costs, these are pass-through costs that don't affect your margin.
What is a healthy margin for delivery orders?
Due to additional costs, a healthy delivery margin is between 35-45%. Lower than 30% becomes risky, especially with discounts involved.
How often should I recalculate margins for discounted customers?
Review your discounted customer margins monthly. Platform fees change, packaging costs fluctuate, and customer ordering patterns shift regularly.
Can I offer different discount tiers based on order frequency?
Yes, tiered discounts work well for delivery. Offer 10% for monthly customers, 15% for weekly, and 20% for customers ordering 3+ times per week. Just ensure each tier remains profitable.
📚 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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