You're considering a coffee happy hour to boost afternoon sales, but one wrong calculation could eat into your profits. Many hospitality entrepreneurs give discounts based on gut feeling, without checking if they're still making money. Here's how to calculate what discount you can safely offer.
Why happy hour discounts can be dangerous
A cup of coffee seems simple: beans, milk, done. But there are more costs involved than you think. If you give 20% discount on a product with 25% margin, you lose money on every cup.
⚠️ Watch out:
Giving a discount doesn't automatically mean more revenue. If your margin gets too low, you earn less despite higher sales.
Calculate your actual cost price first
For coffee, many entrepreneurs only think about the beans. But there's more to it:
- Coffee beans: €0.15-0.25 per cup
- Milk (cappuccino): €0.08-0.12
- Sugar, straws, stirrers: €0.02-0.05
- Disposable cups (takeaway): €0.08-0.15
- Energy (machine, lighting): €0.03-0.08
💡 Example:
Cappuccino cost price:
- Coffee beans: €0.20
- Milk: €0.10
- Sugar + accessories: €0.03
- Disposable cup: €0.12
- Energy: €0.05
Total cost price: €0.50
Calculate your break-even price
Your break-even price is the minimum you need to charge to not lose money. This is your cost price divided by your maximum acceptable food cost percentage.
For coffee, a food cost of 15-25% is normal. At 20% food cost, this means:
Break-even price = Cost price / (Food cost % / 100)
💡 Example calculation:
Cappuccino cost price: €0.50
Desired food cost: 20%
Break-even price excl. VAT: €0.50 / 0.20 = €2.50
Minimum selling price incl. 9% VAT: €2.73
Determine your maximum discount
If your normal selling price is €3.50 and your break-even is €2.73, you have €0.77 room to play with. That's a maximum of 22% discount.
- Normal price: €3.50
- Break-even price: €2.73
- Maximum discount: €0.77 (22%)
- Happy hour price: €2.80 (20% discount)
Factor in the volume effect
Happy hour only makes sense if you sell more. Calculate how many extra cups you need to sell to earn the same amount. From tracking this across dozens of restaurants, the volume increase needs to be significant to compensate.
💡 Volume calculation:
Normal situation: 50 cups at €3.50 = €175 revenue
Costs: 50 × €0.50 = €25
Profit: €175 - €25 = €150
Happy hour: cups at €2.80 = same profit
Required revenue: €150 + €25 = €175
Required cups: €175 / €2.80 = 63 cups (+26%)
So you need to sell 26% more coffee to earn the same amount. Is that realistic during happy hour?
Extra benefits of happy hour
Coffee during happy hour can have other benefits that are hard to measure:
- Customer loyalty: Guests come back more often
- Cross-selling: Coffee + pastry or lunch
- Fill quiet moments: Spread fixed costs
- Competition: Keep customers away from competitors
⚠️ Watch out:
Measure the effect of your happy hour. If you don't sell more or customers only come during the discount, you're losing money.
Alternative discount strategies
Instead of direct price cuts, you could also consider:
- Second coffee free: Encourages higher volume per customer
- Coffee + pastry deal: Higher average bill
- Loyalty card: 10th coffee free
- Time-limited offers: Only between 2:00 PM-4:00 PM
Measure and adjust
Start with a cautious discount of 10-15% and measure the effect over 4 weeks. Pay attention to:
- Number of cups sold during happy hour
- Total coffee revenue per day
- Average bill value (coffee + extras)
- Number of new vs. existing customers
A system like KitchenNmbrs helps you keep your cost prices exact and calculate different price scenarios without having to do it manually.
How do you calculate the maximum discount? (step by step)
Calculate your actual cost price
Add up all costs: coffee beans, milk, sugar, disposable materials and energy. Don't forget anything, not even the small amounts. This is your cost price per cup.
Determine your break-even price
Divide your cost price by your desired food cost percentage (usually 15-25% for coffee). This gives you the minimum selling price to not lose money.
Calculate your discount room
Subtract your break-even price from your normal selling price. This difference is your maximum discount room. Don't exceed it.
Calculate the volume effect
Calculate how many extra cups you need to sell to earn the same amount. If this is unrealistic, give less discount.
Test and measure the result
Start cautiously with 10-15% discount and measure for 4 weeks. Look at volume, revenue and new customers before making adjustments.
✨ Pro tip
Test your happy hour for exactly 3 weeks at 15% discount before going deeper. Track your daily coffee revenue - if it doesn't increase by at least 18% during those hours, you're actually losing money.
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 food cost percentage is normal for coffee?
For coffee, a food cost of 15-25% is common. Specialty coffee can be higher (25-30%) due to more expensive beans, regular filter coffee can be lower (12-18%).
Should I include VAT in my discount calculation?
Always calculate with prices excluding VAT for your cost price calculation. You give the discount on the price including VAT that's on your menu.
How much more do I need to sell with a 20% discount?
With a 20% discount, you need to run about 25% more volume to maintain the same profit. This depends on your original margin.
Can I give a discount on espresso but not on cappuccino?
Yes, that's smart. Espresso often has a higher margin because there's no milk. You can offer different discounts per product.
What if customers only come during happy hour?
Then you're losing money. Measure this well: if your total coffee revenue drops despite higher volume during happy hour, stop the promotion.
How often should I recalculate my cost price?
Check your coffee bean and milk purchase prices monthly. These can fluctuate. Adjust your break-even calculation if costs rise more than 10%.
📚 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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