Are COGS and food cost the same thing? Many restaurant owners think so, but they're actually measuring different aspects of your business. COGS tracks your total ingredient spending over time, while food cost shows the profitability of individual dishes.
What is COGS (Cost of Goods Sold)?
COGS represents your total ingredient spending for items you've actually sold during a specific timeframe. It's an accounting metric that appears on your P&L statement and matters for tax purposes.
💡 Example COGS calculation:
Restaurant The Taste in January:
- Inventory start of January: €3.200
- Purchases in January: €18.500
- Inventory end of January: €2.800
COGS = €3.200 + €18.500 - €2.800 = €18.900
COGS formula:
COGS = Beginning inventory + Purchases - Ending inventory
What is food cost percentage?
Food cost measures how much of each dish's selling price goes toward ingredients. You calculate it per menu item, and it directly impacts your profit margins on individual sales.
💡 Example food cost calculation:
Pasta carbonara:
- Ingredient costs: €6,80
- Menu price: €24,50 incl. 9% VAT
- Menu price excl. VAT: €22,48
Food cost: (€6,80 / €22,48) × 100 = 30,2%
Food cost formula:
Food cost % = (Ingredient costs / Selling price excl. VAT) × 100
The key difference
Here's what separates these two metrics:
- COGS: Shows total ingredient spending across all dishes sold
- Food cost: Reveals profitability of each individual menu item
- COGS: Used for financial reporting and tax calculations
- Food cost: Guides menu pricing and dish optimization
⚠️ Important:
Low overall COGS doesn't guarantee profitable dishes. You need both metrics to understand your true financial picture.
How do COGS and food cost relate to each other?
Your COGS percentage and individual food costs connect, but they don't match exactly. Something most kitchen managers discover too late is that a 30% COGS doesn't mean every dish has 30% food cost.
💡 Example of the difference:
Restaurant with 28% total COGS could have:
- Soup: 18% food cost (high margin)
- Steak: 38% food cost (low margin)
- Pasta: 25% food cost (good margin)
The average hits 28%, but individual dishes vary dramatically.
Why both numbers matter
Running a profitable kitchen requires tracking both metrics:
- COGS reveals your overall ingredient efficiency and cash flow impact
- Food cost per dish identifies which menu items drive profits vs. drain them
- COGS supports budgeting and financial planning
- Food cost informs menu engineering and pricing strategies
Tools like KitchenNmbrs automatically track food costs per dish and help identify which items are inflating your overall COGS.
How do you calculate COGS and food cost?
Calculate your COGS over a period
Add your beginning inventory to your total purchases for that month. Subtract your ending inventory. This gives you the actual cost of goods sold.
Calculate food cost per dish
Add up all ingredient costs for one portion. Divide this by the selling price excluding VAT and multiply by 100 for the percentage.
Compare and analyze both numbers
Check whether dishes with high food cost are driving up your total COGS. Adjust prices or optimize recipes where needed for better margins.
✨ Pro tip
Audit your top 3 menu items every 6 weeks to verify COGS accuracy. If these dishes average 32% food cost and represent 60% of sales, your COGS should align closely with that percentage.
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
Can I use COGS to determine my food cost?
No, COGS only shows your total ingredient costs, not per dish. For food cost you need to calculate each dish individually.
Why is my COGS low but I'm not making much profit?
Low total COGS can be misleading if you're selling a lot of dishes with high food cost. Check your food cost per individual dish to see where the problem is.
How often should I calculate COGS and food cost?
Calculate COGS monthly for your accounting. Check food cost whenever you change your menu and at least quarterly for your most popular dishes.
Should I include VAT in the COGS calculation?
For COGS you calculate with net purchase amounts (what you actually pay). For food cost percentage always use the selling price excluding VAT.
📚 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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