Restaurant COGS: Formula, Benchmarks & How to Control It
If you want to understand whether your restaurant is actually making money,
you need to know what your restaurant COGS number is—and
whether you can trust it.
COGS, or Cost of Goods Sold, measures what it costs your
restaurant to produce the food, beverages and other products you sell.
It sounds simple.
But COGS can look perfectly reasonable on a P&L while hiding problems
with inventory, purchasing, waste, portions, pricing, accounting or unexplained product loss.
COGS is not just an accounting number.
It is one of the clearest indicators of how efficiently your restaurant
turns inventory into sales.
What Is Restaurant COGS?
Restaurant COGS is the cost of inventory that was actually
used or sold during a specific period.
That distinction matters because purchases and usage are not necessarily the same.
Example
Beginning inventory: $10,000
Purchases: $25,000
Ending inventory: $8,000
The restaurant did not simply use the $25,000 it purchased.
The restaurant therefore used approximately
$27,000 of inventory during the month.
The Restaurant COGS Formula
This is why accurate physical inventory counts matter so much.
If beginning inventory, purchases or ending inventory are wrong,
the final COGS number will also be wrong.
You cannot manage food cost accurately if the inventory number underneath
it is unreliable.
Margin & Menu’s
restaurant inventory and COGS controls
help connect purchasing, physical inventory, usage and accounting.
How Do You Calculate Restaurant COGS Percentage?
The dollar amount of COGS is useful, but the percentage makes it much easier
to compare performance across different sales levels.
Example
COGS: $27,000
Food and beverage sales: $90,000
$27,000 ÷ $90,000 = 30%
Your COGS percentage is therefore 30%.
A $27,000 COGS number is not automatically good or bad.
$27,000 against $90,000 in sales is very different from $27,000 against $60,000.
What Should Restaurant COGS Be?
There is no single COGS percentage that every restaurant should hit.
Your target depends on:
- Restaurant concept
- Menu mix
- Food versus beverage sales
- Pricing
- Purchasing costs
- Portion sizes
- Waste
- Location
- Sales volume
As a broad operating benchmark, many restaurants may fall somewhere around
the 30–35% range, although individual concepts can operate
meaningfully above or below it.
Do not manage to a generic benchmark.
Manage to the economics of your own restaurant and the direction of the trend.
Restaurant A
COGS stays around 32% month after month.
Restaurant B
COGS swings from 25% to 40%.
Restaurant A may have much better financial control even if Restaurant B
occasionally reports a lower percentage.
Separate Food COGS and Beverage COGS
One of the most useful improvements you can make to restaurant financial
reporting is separating food and beverage cost.
Do not automatically lump everything into one giant COGS number.
Food COGS
- Meat
- Seafood
- Produce
- Dairy
- Dry goods
- Bread
- Sauces
- Cooking ingredients
Beverage COGS
- Liquor
- Beer
- Wine
- Mixers
- Non-alcoholic beverages
Why the Split Matters
A restaurant may show a combined COGS of 31% while:
Food COGS is 38%
Beverage COGS is 18%
Those are two completely different operating stories.
Separating food and beverage lets you see where gross margin is actually
being created—or lost.
Why Your Restaurant COGS Number Can Be Wrong
A COGS percentage can be inaccurate even when your accounting software is
functioning exactly as configured.
Inventory Counts Are Inaccurate
If ending inventory is wrong, COGS is wrong.
Example
Actual ending inventory:
$10,000
Recorded ending inventory:
$7,000
That $3,000 understatement makes calculated COGS appear $3,000 higher
than it actually was.
Purchases Are Posted to the Wrong Accounts
If food or beverage purchases are categorized incorrectly, the P&L
will not show an accurate COGS number.
Watch for purchases accidentally posted to:
- Repairs
- Supplies
- Miscellaneous expenses
- Equipment
- Other expenses
The reverse can happen too: non-COGS expenses can accidentally inflate food cost.
Our
restaurant accounting services
help keep restaurant COGS and operating expenses structured correctly.
Waste Is Not Being Tracked
Spoilage, overproduction, damaged product, mistakes and expired inventory
all increase actual product usage.
If waste is not recorded, it simply disappears into COGS.
Portions Are Too Large
Your recipe may theoretically produce a 28% food cost.
But if employees consistently over-portion, actual food cost can be
considerably higher.
That is the difference between theoretical food cost and actual food cost.
Product Is Leaving Without Corresponding Sales
Unexplained inventory loss can show up as elevated COGS.
But do not automatically assume theft.
First rule out counting errors, recipe problems, waste, comps, employee
meals, transfers and other legitimate causes.
Actual COGS vs. Theoretical COGS
This is one of the most useful concepts in restaurant cost control.
Actual COGS
What the restaurant actually consumed based on physical inventory and purchasing.
Beginning Inventory + Purchases − Ending Inventory
Theoretical COGS
What the restaurant should have consumed based on recipes, portions and
what the POS says was sold.
Burger Example
Burgers sold:
100
Recipe cost per burger:
$3.00
Theoretical usage:
$300
Actual burger-ingredient usage:
$390
Variance:
$90
That does not automatically mean someone took $90 of product.
It could come from:
- Over-portioning
- Waste
- Incorrect recipe costing
- Incorrect inventory counts
- Complimentary food
- Employee meals
- Spoilage
- Product transfers
- Inventory loss
The variance does not give you the answer.
It tells you where to investigate.
Read our
restaurant inventory variance guide
for the full diagnostic process.
Want to Know Where Your Restaurant Is Leaking Money?
Use the Margin & Menu Restaurant Financial Leak Checklist to review
COGS, inventory, purchasing, labor, cash and the other systems that affect profitability.
What a Rising COGS Percentage Is Trying to Tell You
Suppose sales stay relatively stable while COGS moves:
Do not simply accept the increase as the cost of doing business.
Something changed.
Purchasing
Are supplier prices increasing?
Menu Pricing
Have selling prices kept pace with ingredient costs?
Portions
Are employees serving more product?
Waste
Is more product being thrown away?
Inventory
Are physical counts accurate?
Product Loss
Is inventory disappearing without corresponding sales?
POS Activity
Are comps, modifiers, voids and discounts recorded correctly?
Recipes
Do current recipe costs reflect actual vendor pricing?
The percentage is the warning light.
The investigation finds the problem.
COGS and Prime Cost
COGS becomes even more useful when you connect it to labor.
Example
COGS: 32%
Labor: 28%
Prime cost: 60%
A restaurant can have excellent food cost and terrible labor—or strong
labor control and excessive COGS. You need both numbers.
Read
Restaurant Prime Cost: Formula, Benchmarks & What It Means
.
COGS Is Not the Same as Restaurant Profit
Example
Sales: $100,000
COGS: $30,000
Gross profit: $70,000
That $70,000 still needs to pay for:
- Labor
- Rent
- Utilities
- Insurance
- Credit-card processing
- Repairs
- Marketing
- Taxes
- Software
- Debt
- Other operating expenses
COGS tells you what it cost to produce what you sold.
It does not tell you how much profit the owner ultimately gets to keep.
How Often Should You Track Restaurant COGS?
At minimum, review COGS monthly.
If you’re actively trying to improve food or beverage cost, weekly tracking
can provide much faster feedback.
The key is consistency.
Use the same:
- Inventory dates
- Inventory valuation method
- Sales period
- COGS categories
- Accounting treatment
Otherwise, you are comparing numbers that are not really comparable.
7 Ways to Lower Restaurant COGS
If COGS is too high, do not immediately reduce quality.
Start with the data.
Cost Every Recipe
Know exactly what each menu item costs to produce today.
Review Vendor Pricing
Small increases across dozens of products can materially affect COGS.
Control Portions
Use standardized recipes and portion tools to reduce over-serving.
Track Waste
Record what gets thrown away and why.
Count Inventory Consistently
Accurate inventory is the foundation of accurate COGS.
Compare Actual vs. Theoretical Cost
Use variance to identify where product usage exceeds what sales predict.
Review Menu Pricing
If ingredient costs increased significantly, the menu may no longer
produce the margin it was designed to generate.
If food cost is already running higher than expected, also read
Restaurant Food Cost Too High? 10 Places Your Profit May Be Leaking
.
The Bottom Line
Restaurant COGS is one of the most valuable operating numbers in the business.
If COGS begins climbing, do not stop at:
“Food is getting more expensive.”
Ask where the additional cost is actually coming from.
Purchasing?
Waste?
Portions?
Inventory?
Pricing?
Recipe Costs?
POS Controls?
Accounting?
Once you understand where the variance is coming from, you can actually do something about it.
For a broader review of the systems around COGS, work through our
Restaurant Financial Audit Checklist
.
Find Where the Product—and Margin—Is Going.
The Margin & Menu 360° Restaurant Systems Audit looks beyond the
percentage and traces the systems that create your restaurant’s COGS.
- Food and beverage COGS
- Inventory counts and valuation
- Purchasing and receiving
- Vendor pricing
- Recipe costing
- Portion controls
- Waste and variance
- POS sales and comps
- QuickBooks and accounting
- Prime cost and profitability
You receive a financial health score, written findings and a
prioritized action plan showing what is driving the number and
what deserves attention first.
360° Restaurant Financial Audit — $995
Fix the Systems Behind Your Restaurant’s Numbers.
Better restaurant financial performance starts with systems that connect.
Explore the areas where Margin & Menu helps restaurant owners improve
control, reporting and profitability.
ACCOUNTING
Restaurant Accounting Services
Reconciliation, QuickBooks & financial reporting →
POS SYSTEMS
Restaurant POS Consulting
POS setup, reporting & back-office controls →
INVENTORY + COGS
Inventory & COGS Controls
Purchasing, variance, waste & food cost →
PAYROLL + LABOR
Payroll & Labor Controls
Scheduling, payroll & labor-cost control →
CASH + TIPS
Cash & Tip Controls
Drawers, tips, payouts & deposits →
PROFITABILITY
Profitability & Financial Reporting
Prime cost, cash flow, margins & KPIs →