Food cost percentage is one of the most-watched numbers in restaurant operations — and one of the most misunderstood. Restaurant owners know they're supposed to track it. Fewer know exactly what formula to use, what a good number actually looks like for their type of operation, or what to do when it spikes.
This guide covers the formula, the benchmarks, what causes food cost to move in the wrong direction, and how to bring it back down.
What Is Food Cost Percentage?
Food cost percentage is the ratio of what you spend on food and beverages to the revenue those items generate. It answers the question: for every dollar of food and beverage sales, how much did the ingredients cost?
It's expressed as a percentage because a raw dollar amount has no context. Spending $40,000 on food could be lean or catastrophic depending on whether you're doing $120,000 or $80,000 in revenue.
The Food Cost Percentage Formula
The key is using your actual Cost of Goods Sold (COGS) — not just your purchases. COGS accounts for what you actually used during the period, not just what arrived:
If you skip the inventory adjustment and just divide purchases by revenue, your food cost percentage will be wrong — sometimes significantly, depending on how much inventory you're carrying and how it fluctuates.
Food Cost Percentage Calculator
Calculate Your Food Cost %
A Step-by-Step Example
Beginning inventory: $12,000
Purchases during April: $38,500
Ending inventory: $11,200
COGS: $12,000 + $38,500 − $11,200 = $39,300
Food & beverage revenue: $128,000
Food Cost %: $39,300 ÷ $128,000 × 100 = 30.7%
30.7% is solid for a full-service operation. If this restaurant is also running labor at around 30%, their prime cost is roughly 61% — tight but profitable.
What Is a Good Food Cost Percentage?
There's no single right answer — it depends on your restaurant type and business model. Higher-end ingredients and higher check averages change the math considerably.
| Restaurant Type | Food Cost Target | Beverage Cost Target | Notes |
|---|---|---|---|
| Fast Casual / QSR | 25–30% | 15–20% | Lower ingredient cost, high volume model |
| Casual Dining | 28–32% | 18–22% | Standard benchmark for most operators |
| Full Service | 28–35% | 20–24% | Higher beverage cost offset by bar margin |
| Fine Dining | 32–38% | 22–28% | Premium ingredients justified by check average |
| Bar-Forward | 22–28% | 18–22% | Beverage mix lowers blended COGS |
A few things worth noting about these ranges:
- Your own history matters more than industry averages. If you've run at 29% for two years and it's suddenly at 34%, that's the signal — regardless of where 34% falls on a benchmark chart.
- Food and beverage should be tracked separately. Blending them masks problems. A restaurant with a 32% blended cost could have a 40% food cost and a 20% beverage cost — very different problems with very different solutions.
- Theoretical vs. actual cost matters. Your theoretical food cost is what you should be spending based on recipes and portion sizes. Your actual food cost is what you actually spent. The gap between them is waste, theft, and portioning variance.
What Causes Food Cost Percentage to Spike?
Vendor price increases
The most common cause — and the one operators often don't catch fast enough. A 10% increase on your protein spend doesn't feel like much per invoice, but across a month it can move your food cost 2–3 percentage points. If you're not reconciling invoices against expected costs, price creep compounds quietly.
Waste and spoilage
Ordered but not used inventory goes directly into COGS without contributing to revenue. Poor prep planning, over-ordering, and inadequate storage all drive waste. In a busy kitchen it's easy to lose 3–5% of food cost to spoilage alone.
Portioning inconsistency
A recipe says 6 oz of protein per plate. If your kitchen is consistently plating 7 oz, your food cost is running 17% higher than your theoretical cost suggests. This is especially common in high-turnover BOH environments.
Inventory counting errors
If you're not counting physical inventory carefully — or not counting at all and estimating ending inventory — your COGS calculation is fiction. Inaccurate inventory counts produce inaccurate food cost numbers that lead to wrong decisions.
Menu mix shifts
Your menu items don't all have the same food cost percentage. If you run a special that's popular but has a 45% food cost, or if your high-cost items start outselling your lower-cost items, your blended food cost goes up even if nothing else changed.
Theft
It happens. Both front-of-house (comps, voids, open tabs) and back-of-house (ingredients leaving the kitchen). Consistent unexplained food cost variance against theoretical is often the first sign.
How to Lower Food Cost Percentage
1. Track it weekly, not monthly
A month is too long to wait. If food cost spikes in week 1, you've already paid for it three more times before you see it in a monthly report. Weekly tracking lets you investigate when the problem is fresh and fixable.
2. Reconcile invoices against expected costs
When a Sysco or US Foods invoice arrives, check it against your expected cost. If the price on a case of chicken thighs is up 12%, you need to know now — not at month end. Vendor price increases are the most common silent food cost killer.
3. Count inventory consistently
Use the same counting method, same timing (typically end of week, before Sunday delivery), same person where possible. Inconsistent counting produces noisy data that masks real problems.
4. Track theoretical vs. actual
Build your recipes in a system and track what they should cost. Then compare against actual COGS. A persistent 3–5% gap tells you something structural is wrong — portioning, waste, or theft. A one-week spike tells you something happened that week.
5. Engineer your menu
Know the food cost percentage on every item. Stars (high popularity, low cost) should be featured. If a popular item has a 42% food cost, either reprice it or redesign the recipe. Menu engineering is one of the highest-leverage things an owner can do for food cost.
6. Tighten your ordering
Most over-ordering comes from ordering by habit rather than par. If you're consistently throwing away the same items, you're over-ordering. Build pars based on actual usage data, not what you ordered last week.
Food Cost Percentage vs. Prime Cost
Food cost percentage is just one component of the bigger picture. Prime cost — food cost plus labor cost — is the more comprehensive metric because it captures both of your major variable expenses together.
A restaurant could have a 28% food cost but still be in financial trouble if labor is running at 42%. Tracking food cost in isolation tells you half the story. Prime cost tells you whether you're actually on track to make money.
How Portioned Tracks Food Cost
Portioned pulls in your vendor invoices — Sysco, US Foods, Fintech beverage statements, and others — and matches them against your Toast POS revenue automatically. You can ask "what was my food cost last month?" or "which vendor drove the spike in week 3?" and get a direct answer from your actual data.
No spreadsheet. No manual entry. No waiting for your accountant to run a report. The data is there when you need it — which is before the problem gets expensive, not after.
Stop Guessing Your Food Cost
Portioned connects your invoices, POS data, and bank statements — and shows you food cost by week, automatically. Ask questions, get answers.
Get Early Access →Frequently Asked Questions
What is food cost percentage in a restaurant?
Food cost percentage is the ratio of your Cost of Goods Sold (COGS) to your food and beverage revenue, expressed as a percentage. It tells you how much of each revenue dollar went to ingredients.
What is a good food cost percentage for a restaurant?
Most full-service restaurants target 28–32% for food and 18–24% for beverages. Fine dining can run higher (32–38%) because of ingredient quality. Fast casual and QSR typically target 25–30%. Above 35% for a full-service operation is a warning sign worth investigating.
How do you calculate food cost percentage?
Food Cost % = (Beginning Inventory + Purchases − Ending Inventory) ÷ Food & Beverage Revenue × 100. The numerator is your actual COGS — what you used during the period, accounting for inventory changes.
What causes food cost percentage to spike?
The most common causes are vendor price increases (especially proteins), kitchen waste and spoilage, portioning inconsistency, inventory counting errors, menu mix shifts toward higher-cost items, and theft.
What is the difference between food cost and food cost percentage?
Food cost is a dollar amount — what you spent on ingredients. Food cost percentage puts that in context as a share of revenue. $35,000 in food cost is fine at $130,000 revenue (26.9%) and a problem at $90,000 revenue (38.9%). Always use the percentage for operational decision-making.
Should food and beverage cost be tracked separately?
Yes. Blending them obscures where problems are coming from. A 32% blended COGS could mean food is at 40% and beverages are at 18% — very different problems. Track food cost, beverage cost, and combined COGS as three separate numbers.