📝 Menu psychology & menu engineering · ⏱️ 2 min read

How do I calculate margin when I add photos to only my Stars?

📝 KitchenNmbrs · updated 12 Mar 2026

Menu engineering with photos can significantly impact your margin. Photos of popular and profitable dishes (Stars) boost sales, but they also cost money. Here you'll learn exactly how to calculate whether that investment pays for itself.

What are Stars in menu engineering?

Stars are your golden combination: popular dishes that are also profitable. You sell a lot of these dishes and they deliver good returns. Photos of Stars can boost sales even further.

💡 Example Stars:

Restaurant with 100 covers per day:

  • Steak: 25% of guests order this, food cost 28%
  • Salmon fillet: 20% of guests order this, food cost 30%
  • Risotto: 15% of guests order this, food cost 25%

These 3 dishes are your Stars - popular and profitable

Calculate photo costs

Professional menu photos cost between €75-200 per dish. Also factor in new menus or displays.

💡 Example costs:

  • Photo shoot 3 Stars: €450 (€150 per dish)
  • New menus printed: €200
  • Digital displays update: €100

Total investment: €750

Measure expected sales boost

Photos can increase a dish's sales by 15-35%. First measure your current sales per Star, then you can calculate the impact.

⚠️ Note:

Photos work especially well for dishes guests don't yet know. For a classic steak, the effect is smaller than for a special risotto.

Calculate margin impact

The formula: (Extra sales × Margin per dish) - Photo costs = Net margin impact

💡 Example calculation:

Risotto (€24 incl. VAT = €22.02 excl. VAT):

  • Current sales: 15 per day × 25 days = 375/month
  • Food cost: 25% = €5.51 per portion
  • Margin per portion: €22.02 - €5.51 = €16.51
  • Expected boost: +25% = 94 extra portions/month

Extra margin per month: 94 × €16.51 = €1,552

Payback period for photos: €750 / €1,552 = 0.5 months

ROI over longer term

Good menu photos last 1-2 years. Calculate total revenue over that period.

  • First year: €1,552 × 12 = €18,624 extra margin
  • Minus investment: €750
  • Net profit year 1: €17,874
  • ROI: 2,383% on annual basis

Which Stars get priority?

Not all Stars deserve a photo. Focus on dishes with the highest absolute margin and room for growth.

💡 Priority ranking:

  • High margin + unique dish = first priority
  • High margin + familiar dish = second priority
  • Lower margin + very popular = third priority

How do you calculate the margin impact of photos on Stars?

1

Identify your Stars

Make a list of dishes that are both popular and profitable. Measure how many you sell per day and what the margin per portion is (selling price excl. VAT minus ingredient costs).

2

Calculate photo costs

Add up what you spend on photography, menu reprint and any display updates. Budget €75-200 per professional photo plus additional costs.

3

Estimate sales boost

Expect 15-35% more sales for photographed Stars. Multiply your current sales by this percentage to calculate extra portions per month.

4

Calculate payback period

Multiply extra portions by margin per portion for your monthly extra profit. Divide your total investment by this monthly profit to see how many months until you break even.

✨ Pro tip

First measure your current sales per Star for 2 weeks before you have photos taken. That way you can later calculate exactly what the photos delivered and which dishes respond best to visual presentation.

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

Do I need to take photos of all my popular dishes?

No, focus first on your Stars with the highest absolute margin. A dish that delivers €15 margin per portion deserves a photo sooner than a dish with €8 margin, even if both are popular.

How long does it take for photos to pay for themselves?

For a good Star, usually 1-3 months. Dishes with high margin and room for growth pay back the investment faster than dishes already at their maximum.

What if the sales boost falls short?

Calculate conservatively with 15-20% boost instead of 35%. Even with a smaller increase, photos of profitable Stars usually pay for themselves within half a year.

Can I measure the impact of photos?

Yes, compare your sales figures 4 weeks before and 4 weeks after adding photos. Watch out for seasonal influences and other changes that could affect sales.

Are smartphone photos good enough?

For social media yes, for menus often not. Professional photos cost more but usually generate more sales through better presentation and quality.

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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