How can I lower my food cost percentage?
Start with the biggest controllables- tighten portioning on high-cost items, reduce waste with pars and FIFO rotation, audit invoices for miscoding, and track weekly variances to catch problems early.
How to Calculate Food Cost Percentage
Food Cost Percentage Basics
Food cost percentage is one of the simplest numbers in restaurant operations - and one of the easiest to misunderstand. At its core, food cost percentage tells you how much of your food sales are being spent on the food you used to produce those sales during a specific time period.
Here's the straightforward definition -
Food Cost Percentage = (Cost of Food Used / Food Sales) x 100
So if you sold $10,000 in food last week and your kitchen used $3,000 worth of food to produce those sales, your food cost percentage is -
- ($3,000 / $10,000) 100 = 30%
That 30% isn't just a math result - it's a management signal. It helps you answer questions like -
1. Are your menu prices realistic for today's ingredient costs?
If supplier prices go up but menu prices stay the same, your food cost % will climb. That's not a mystery - it's a warning that your margins are getting squeezed.
2. Are portions being controlled consistently?
Even small over-portioning adds up fast. If your recipes say 6 oz but plates regularly go out with 7-8 oz, your food cost % rises even if sales look strong.
3. Is waste, spoilage, or theft eating your profits?
Food cost % often spikes when inventory management breaks down - expired product, prep waste, incorrect receiving, or items disappearing without being sold.
4. Are you tracking performance week to week, not just month to month?
Many owners only look at food cost monthly. The problem- you can lose a lot of money in four weeks before you notice. A weekly view gives you faster course correction.
The Core Formula
Once you understand what food cost percentage represents, the next step is getting the math right - and making sure you're using the right inputs. Most "bad" food cost numbers aren't caused by the formula. They're caused by pulling the wrong sales figure, mixing food with supplies, or using inventory counts that don't match the same date range.
The standard food cost percentage formula
The most common and reliable calculation is -
Food Cost % = (COGS / Food Sales) x 100
Where -
COGS = Cost of Goods Sold (specifically food used during the period)
Food Sales = Your food revenue for the same period (ideally net food sales)
This is the formula owners use to measure how efficiently the restaurant turns food purchases into food revenue.
What numbers you need
1) COGS (Cost of Goods Sold)
COGS is not the same thing as "purchases." If you bought $8,000 in food this week, you didn't necessarily use $8,000 in food. Some is still on your shelves, in your freezer, or in prep.
The correct COGS equation is -
COGS = Beginning Inventory + Purchases - Ending Inventory
To calculate that, you need -
- Beginning inventory value (what you had on-hand at the start)
- Purchases value (food invoices/receipts during the period)
- Ending inventory value (what you have on-hand at the end)
Most restaurants get these from -
- Inventory count sheets (weekly or monthly)
- Invoices from vendors (or an AP/purchasing report)
Important, keep food separate from -
- Paper goods (to-go containers, napkins)
- Cleaning supplies
- Smallwares
Those belong in other expense categories. Mixing them into food purchases will inflate your food cost % and make you chase the wrong problem.
2) Food Sales
Food sales should come from your POS sales reports. The most common mistake is using "total sales" (which includes alcohol) or using sales from dates that don't align with the inventory period.
Your food sales should ideally be -
- Food-only sales
- For the exact same start and end dates as your COGS window
- Preferably net of refunds, with discounts/comps tracked consistently
Before you calculate anything, confirm this -
- Your inventory period and your sales period must match.
If your inventory count covers MondaySunday, your POS food sales must cover MondaySunday too. When dates don't match, your percentage becomes noise instead of a decision-making tool.
Step-by-Step COGS Calculation
If food cost percentage is the dashboard light, COGS is the engine reading behind it. When COGS is calculated correctly, your food cost % becomes a reliable KPI you can manage. When COGS is sloppy, the percentage becomes guesswork.
Here's the clean, repeatable process.
Step 1. Choose a consistent timeframe (weekly is best)
You can calculate COGS weekly, bi-weekly, or monthly. Monthly is common for accounting, but weekly is better for operations because it helps you catch problems early - portion creep, vendor price jumps, waste, or ordering mistakes.
Pick one window and stick to it (example. Monday-Sunday).
Step 2. Calculate Beginning Inventory (BI)
Beginning inventory is the value of food you had on-hand at the start of the period.
- If you count inventory every week, your beginning inventory is simply last week's ending inventory.
- If you count monthly, your beginning inventory is your last month-end count.
Best practices that protect accuracy -
1. Count at the same time each period (ideally before receiving begins)
2. Use the same item list each time (avoid "missing" products)
3. Count in consistent units (lbs, cases, each) and don't mix formats
Step 3. Add Purchases (P)
Purchases are the total food you bought during the period, based on invoices or receipts.
To keep purchases clean -
- Include only food and ingredients (proteins, produce, dairy, dry goods, etc.)
- Exclude paper goods, cleaning chemicals, and smallwares
- Make sure credits are handled correctly (returns, damaged goods, vendor credits)
Practical tip - if your vendor invoices include mixed categories, code them properly. One miscategorized invoice can throw off a whole week.
Step 4. Subtract Ending Inventory (EI)
Ending inventory is the value of food you still have on-hand at the end of the period - what's left in storage, coolers, freezers, and prep areas.
To get a reliable ending inventory -
1. Count the same areas every time (walk-in, reach-ins, dry storage, prep line)
2. Count high-value items first (meat, seafood, cheese, cooking oils)
3. Don't forget prepped items (sauces, dressings, marinated proteins) if you track them
Step 5. Run the COGS equation
Now plug into the formula -
COGS = Beginning Inventory + Purchases - Ending Inventory
Example -
BI = $6,000
Purchases = $4,500
EI = $5,200
COGS = $6,000 + $4,500 - $5,200 = $5,300
That $5,300 is the value of food you actually used to generate sales during that period. Next, you'll pair it with the right food sales number - so your food cost percentage reflects reality, not accounting noise.
Step-by-Step Food Sales Calculation
You can calculate COGS perfectly and still get a useless food cost percentage if your food sales number is wrong. This is where a lot of owners get tripped up - especially with discounts, comps, refunds, third-party orders, and alcohol being mixed into the same sales bucket.
Your goal is simple - use the food sales figure that matches your COGS time window and reflects the revenue your kitchen actually generated.
Step 1. Pull sales from your POS for the exact same dates
First, match the dates. If your inventory window is MondaySunday, then your POS report must be Monday-Sunday too.
This alignment is non-negotiable. If you use sales from a different timeframe than your inventory, the percentage will swing for reasons that have nothing to do with food performance.
Step 2. Use food-only sales (not total sales)
Food cost percentage is measuring food spend against food revenue. If you include alcohol, merchandise, or retail items in the denominator, your food cost % will look artificially low and you'll think you're "doing fine" when you're not.
In your POS, pull one of these -
- Food category sales (preferred)
- Net food sales by menu group (apps, entrees, sides, desserts)
- A sales report filtered to food items only
If your POS doesn't separate cleanly, start simple -
- Exclude alcohol categories
- Exclude retail (bottles, t-shirts, pantry items)
- Keep the method consistent week to week
Step 3. Decide whether you're using gross or net food sales
This is where consistency matters more than perfection.
Gross food sales = before discounts and comps
Net food sales = after discounts, promos, and comps
Many operators prefer net food sales because it reflects real revenue. But you must also track discounts/comps as their own KPI so you don't hide problems.
A practical approach -
1. Use net food sales for the calculation
2. Track discounts + comps separately each week
3. Investigate spikes (promo overload, staff comp habits, void abuse)
Step 4. Handle refunds, voids, and employee meals correctly
- Refunds reduce sales and can push your food cost % up (even if operations didn't change)
- Voids should not count as sales, but they should be monitored for control issues
- Employee meals should be coded consistently (either as comps or an internal meal category)
The key is to avoid phantom sales that never actually happened.
Step 5. Watch out for third-party delivery reporting
Third-party platforms can be confusing because they include -
- Customer-paid totals
- Marketplace commissions/fees
- Menu price markups
- Payout amounts
For food cost %, you want the food sales value that corresponds to the orders your kitchen produced - typically what your POS records as food sales (not the payout after fees).
Once you have COGS and accurate food sales for the same window, you're ready to calculate food cost percentage and interpret it with confidence.
Weekly Food Cost Percentage Example
Timeframe. Monday-Sunday
Step 1. Calculate COGS
You counted inventory at the start and end of the week and totaled food invoices during the week.
Beginning Inventory (BI). $7,200
Purchases (Food only). $4,800
Ending Inventory (EI). $6,500
COGS = BI + Purchases - EI
COGS = $7,200 + $4,800 - $6,500 = $5,500
Step 2. Pull Food Sales
From your POS, you run a food sales report for the same Monday-Sunday window -
Net Food Sales. $18,250
Step 3. Calculate Food Cost %
Food Cost % = (COGS / Food Sales) x 100
Food Cost % = ($5,500 / $18,250) x 100 = 30.1%
How to interpret it -
Approximately 30% weekly food cost is often within a workable range for many concepts. What matters most is whether it's on target for your restaurant and whether it's moving up or down week to week.
Transform Your Restaurant Operations Now!
Effortless Inventory Tracking with Altametrics!
Monthly Food Cost Percentage Example
Timeframe. March 1-March 31
Beginning Inventory. $28,000
Purchases (Food only). $62,000
Ending Inventory. $25,500
COGS = $28,000 + $62,000 - $25,500 = $64,500
POS Net Food Sales for March. $215,000
Food Cost % = ($64,500 / $215,000) x 100 = 30.0%
You could have two bad weeks (waste, over-ordering, portion creep) and two good weeks (busy weekends, strong sales), and the month still averages out to approximately 30%. Weekly tracking catches the problem while it's still fixable.
What's a Good Food Cost Percentage
Restaurant owners often ask, "What should my food cost percentage be?" The honest answer is- there's a typical range, but your good number is the one that supports your margins, your menu, and your concept. Two restaurants can both be well-run and have very different food cost percentages.
Typical food cost percentage ranges (use as a baseline
These ranges are common starting points in the industry -
Quick Service / Fast Casual. 25-33%
- Simpler menus and tighter portioning can keep costs lower, but proteins and fresh ingredients can push higher.
Full-Service Restaurants. 28-35%
- More complex dishes, broader menus, and higher waste risk often push the percentage up.
Pizza Concepts. 18-28%
- Dough and sauce are low-cost; cheese and meats drive the percentage. Delivery discounts can also affect sales.
Steakhouses / Seafood-Heavy Menus. 32-40%
- Higher-priced proteins drive higher cost percentage unless menu prices are strong and portion control is tight.
Bakery / Cafe. 20-30%
- Depends heavily on scratch vs. purchased items and how much beverage revenue is included or excluded.
These are not rules. They're guardrails. The main value is giving you a reference point so you know when your number is unusually high (or suspiciously low because sales categories are mixed).
How to set a target that fits your restaurant
A practical target isn't picked from a blog - it's built from your own realities -
1. Start with your menu pricing and margins
- For each major menu category (burgers, bowls, pasta, salads), you should know your approximate plate cost range.
- If many items cost $4 to make and sell for $14, your food cost on those items is approximately 29%. If your core items are closer to 35-40%, your overall food cost will follow.
2. Factor in concept and service style
- Broad menus, frequent specials, and high prep complexity increase waste risk.
- Tight menus, standardized builds, and portion tools reduce variation.
3. Build targets by category - not just one overall number
Instead of only tracking "overall food cost %," track category targets like -
- Proteins (meat/seafood)
- Produce
- Dairy
- Dry goods
- Fry oil / high-variance items
This helps you diagnose problems faster. If your overall food cost rises from 30% to 33%, category-level tracking tells you whether it was a vendor beef increase, produce spoilage, or over-portioning.
Use weekly tracking to keep your target realistic - Your target should be stable, but not stubborn. If vendor prices shift or menu mix changes, update your targets intentionally - don't ignore the data.
Bottom line - "Good" food cost percentage is the one you can hit consistently while still delivering the quality your guests expect - and keeping enough margin to run a healthy business.
Streamline Your Inventory. Order Smartly.
Start Simplifying Your Orders with Altametrics
Must-Read Content
How to calculate average inventory
How to Calculate Average Inventory for Restaurants
Control restaurant food cost
How to Control Restaurant Food Costs
Inventory costs
Inventory Costs Explained for Restaurant Owners
Food cost for restaurants
How to Lower Food Cost for Restaurants
Inventory management and best practices
Restaurant Inventory Management and Best Practices
Frequently Asked Questions
What items should I prioritize when counting inventory?
Start with high-value and high-usage items - proteins, seafood, cheese, cooking oils, specialty sauces, and expensive dry goods. These items move your COGS the most.
What's the difference between food cost percentage and food cost per plate?
Food cost % compares total food used vs total food sales for a period. Plate cost measures the cost to make one menu item based on its recipe and portion size.
What is the formula for food cost percentage?
Food Cost % = (COGS / Food Sales) x 100. COGS is the value of food you used during the period, not just what you purchased.
How do I calculate COGS for food cost percentage?
COGS = Beginning Inventory + Purchases - Ending Inventory. Make sure inventory and purchases include food only, not paper goods or cleaning supplies.
