High revenue doesn't always mean high profit. While promotions and seasonal offers appear to boost business, they often squeeze margins dangerously thin. A packed restaurant can still drain your bank account.
Why revenue can mislead you
A bustling dining room feels amazing. But generating €1000 extra revenue through promotions with just 5% margin nets you only €50. That same energy could've gone toward dishes with 25% margins.
💡 Example:
Summer terrace promotion: 3-course menu for €24.95
- Normal price: €39.50
- Ingredient costs: €18.50
- Normal margin: €21.00 (53%)
- Promotion margin: €6.45 (26%)
Each promotional menu costs you €14.55 in lost margin
Hidden costs behind promotions
Promotions carry expenses beyond discounted prices. You'll typically face:
- Increased purchasing: higher volumes at identical wholesale prices
- Additional staffing: busier shifts demand more workers
- Elevated energy bills: kitchens running at maximum output
- Greater waste potential: miscalculating demand hurts twice
Measuring actual profitability
Skip revenue obsession. Focus on contribution per hour instead. This reveals what you're truly earning per time unit. After managing kitchen operations for nearly a decade, I've seen countless operators mistake busy nights for profitable ones.
💡 Example calculation:
Friday evening (6-hour service):
- Revenue: €2400
- Food cost: €720 (30%)
- Staff costs: €480
- Other costs: €200
Profit per hour: (€2400 - €1400) / 6 = €167/hour
Red flags for margin-killing promotions
These warning signs spell trouble:
- Food costs climbing past 35% during promotional periods
- Exhausted team, unchanged profits: harder work without financial gains
- Supplier payment pressure: cash flow struggles from compressed margins
- Fixed costs feeling heavier: rent and utilities unchanged while profits shrink
⚠️ Heads up:
Seasonal promotions become habit-forming. Customers expect discounts and visit less at regular prices. You're building a downward spiral.
Smarter seasonal revenue strategies
Rather than slashing prices, consider:
- Adding value: complimentary amuse-bouche, welcome drinks, or bonus courses
- Building bundles: wine pairings at appealing prices while preserving margins
- Targeting slow periods: Monday night specials only, not prime time discounts
- Seasonal ingredient focus: lower purchasing costs equal better margins at standard pricing
💡 Example smart promotion:
Asparagus season (April-June):
- Asparagus: €8/kg (seasonal low)
- Asparagus dish: €22.50 standard price
- Food cost: 25% (below average)
- Marketing: "Fresh asparagus season arrives!"
Increased revenue AND improved margins through strategic purchasing
Tracking tools that matter
Manual margin tracking per promotion eats up precious time. Systems like KitchenNmbrs calculate food costs per dish automatically, even during promotional periods. You'll instantly spot whether promotions generate profit or drain resources.
How do you analyze the profitability of promotions?
Calculate the real margin per dish
Add up all ingredient costs and divide by the selling price excluding VAT. For promotions, do this for both the regular price and the promotion price.
Measure revenue and profit per time period
Compare not just revenue figures, but also absolute profit. Lower revenue with higher margin can generate more than high revenue with low margin.
Analyze the total costs of the promotion
Add extra staff costs, energy costs, and any marketing costs to the lower margin. This gives you the complete picture of what the promotion actually costs.
✨ Pro tip
Monitor your top 5 promotional items daily for the first 72 hours of any campaign. If food costs exceed 32% on these key dishes, adjust portions or pricing immediately.
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 margin should I maintain during seasonal promotions?
Aim to keep food costs below 30%, even with promotions running. If your net margin drops under 15%, you're likely not covering operational expenses properly.
How frequently should I review promotion profitability?
Monitor weekly during active promotional periods. This allows quick adjustments if margins compress too severely or customer volume disappoints.
Should I eliminate promotions completely?
Not necessarily, but choose strategically. Promotions targeting new customers or filling slow periods can work well, provided you monitor margins closely.
How do I stop customers from only visiting during promotions?
Limit promotional frequency and duration. Create genuine seasonal events rather than monthly repeats. Emphasize added value over price cuts.
What happens if I run promotions on my signature dishes?
This typically backfires since signature items often carry your highest margins. Customers already order these at full price, so discounting them just reduces profit without increasing volume significantly.
Which metrics matter most for promotion analysis?
Track food cost percentage, hourly revenue, and daily absolute profit. These three numbers provide complete visibility into your promotional performance.
📚 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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