Prime cost is the single most important number on your restaurant’s P&L, and most operators either calculate it too infrequently or get it wrong. Knowing your prime cost is only half the battle. Acting on it weekly is what actually moves the needle. See how R365’s prime cost tracking tools and accounting platform give operators real-time visibility into their biggest controllable costs.
As of October 2026, prime cost is the single number that tells you whether your restaurant is making money or bleeding it. The formula is simple: Prime Cost = Cost of Goods Sold (COGS) + Total Labor Costs. Those two line items typically account for 55–65% of every dollar you bring in, and they are the largest expenses you can actually control. Rent, utilities, insurance: you are mostly stuck with those. But food purchasing, portioning, scheduling, and wage management are decisions you make every day. This article walks through the formula, shows a worked example with real numbers, provides benchmark targets by restaurant type, and answers the most common questions operators ask about prime cost. If your prime cost percentage is a mystery, you are managing your restaurant with the lights off.
For a foundational overview, see R365’s how to calculate restaurant prime cost and prime cost accounting explained.
Prime cost is the sum of the two biggest controllable costs in your restaurant: what you spend on ingredients and what you spend on people. It includes every dollar of food and beverage product that goes into a sold menu item (your COGS) and every dollar you pay to the team that prepares and serves it (your total labor).
It does not include rent, marketing, equipment depreciation, or utility bills. Those matter, but they sit outside prime cost because you cannot adjust them week to week the way you can adjust a prep schedule or a purchase order.
The reason prime cost gets so much attention is straightforward: it is the largest variable expense in your P&L, and small percentage-point changes translate into real money. Kabob House, a multi-unit operator, reduced prime cost from 72% to 61% of sales after gaining visibility into their food and labor numbers. That 11-point drop came from roughly 5–6% savings on each side. For context, Kabob House’s owner, Mr. Baqer, estimated that a 2% reduction in labor alone saved $40,000–$60,000 a year.
For more on what prime cost includes and why it matters, see R365’s how to find prime cost: prime cost equation explained and how to track restaurant prime cost.
The formula has two parts, and getting each one right matters more than the arithmetic.
COGS is the cost of the food and beverage ingredients you actually sold during a specific period. It is not the same as your total purchases. Many franchisees confuse the two. As Gregg Majewski put it: “We have franchisees that tell me their food costs are their purchases. That’s not food costs, man. You’ve got $10,000 of inventory sitting in your freezers. That’s not food costs. That’s just waste.”
The correct formula:
Starting Inventory + Purchases – Ending Inventory = COGS
This means you need accurate inventory counts. If your counts are off, your COGS is fiction. COGS covers ingredients, beverages, and related consumable supplies like napkins or to-go containers. It does not cover one-time costs like a new oven or replacement barstools.
Labor is more than hourly wages. Your total labor cost includes:
Salaried managers count. So does the dishwasher’s overtime. If you leave out payroll taxes or benefits, you are significantly understating your true labor cost.
Once you have both numbers for the same time period:
COGS + Total Labor Costs = Prime Cost
And to turn that into a percentage you can benchmark:
Prime Cost ÷ Total Sales = Prime Cost Percentage
For a complete breakdown of how to calculate both components correctly, see R365’s calculating crucial restaurant data and food cost guide: formula, benchmarks, and how R365 helps.
Below is a worked example for one week of operations at a single location.
| Line item | Amount |
|---|---|
| Starting inventory | $12,000 |
| Purchases during the week | $3,000 |
| Ending inventory | $9,000 |
| COGS | $6,000 |
$12,000 + $3,000 – $9,000 = $6,000
| Line item | Amount |
|---|---|
| Employee wages | $5,200 |
| Payroll taxes | $800 |
| Benefits and insurance | $1,000 |
| Total labor | $7,000 |
$6,000 + $7,000 = $13,000 prime cost
$13,000 ÷ $22,000 total sales = 59.1%
A 59.1% prime cost falls within the healthy range for most full-service restaurants. If this number were 67%, you would know immediately that either food costs, labor costs, or both need attention.
For more on how to run this calculation accurately and consistently, see R365’s 5 recommendations to reduce restaurant prime cost and giving your restaurant a prime cost tune-up.
As of 2026, the short answer: aim for 55–60% of total sales. But the right target depends on what kind of restaurant you run.
| Service model | Target prime cost % | Notes |
|---|---|---|
| Quick service / fast casual | 55–60% | Lower labor (fewer servers), moderate food cost |
| Full service | 60–65% | Higher labor (servers, bussers, bartenders) |
| Fine dining | Typically higher than full service | Higher labor and premium ingredients |
| Bars / beverage-heavy concepts | Under 60% | Low food cost, moderate labor |
These ranges are guidelines. A seafood concept using premium proteins at affordable prices will have a different cost structure than a full-service restaurant serving pizza and gelato, which one Restaurant365 customer brought to an 18.5% food cost through strict portion control and disciplined menu pricing.
Rather than chasing an industry average, set a specific target for your restaurant and work toward it incrementally. If you are at 64%, aim for 62% over the next quarter, then 60%, and hold there. A 2-point improvement on $2 million in annual sales is $40,000 back in your pocket.
For more on benchmarks by concept type, see R365’s restaurant food cost benchmarks by concept type and 5 restaurant KPIs to track weekly.
These three terms get mixed up constantly. The table below shows how they relate:
| Term | What it includes | What it tells you |
|---|---|---|
| Food cost (COGS) | Ingredients and beverages sold | How efficiently you buy, store, and use product |
| Labor cost | Wages, taxes, benefits, insurance | How efficiently you schedule and staff |
| Prime cost | Food cost + labor cost | Your total controllable cost picture |
Food cost and labor cost are the two components of prime cost. Tracking them separately is useful for diagnosing problems (is it a purchasing issue or a scheduling issue?), but prime cost gives you the combined view. A restaurant can have low food cost and still lose money if labor is out of control, or vice versa.
Paul Potvin of California Fish Grill described the relationship simply: “Labor and food costs are cost of goods. If you can nail those two, after that, all the other stuff is kind of small potatoes.”
For a side-by-side breakdown of how each metric is used, see R365’s recipe costing vs. food costing and how to calculate restaurant labor costs: key metrics.
Prime cost is the line item you can move. Your lease payment is fixed. Your insurance premium is negotiated once a year. But the amount of shrimp that gets over-portioned on Tuesday night, or the extra prep cook scheduled on a slow Wednesday, those are decisions that compound into thousands of dollars per month.
Eli’s Restaurant Group estimated they were losing approximately $1.5 million annually to inefficiencies in food, labor, and supply cost tracking. After adopting actual vs. theoretical reporting and tighter recipe costing through Restaurant365, they closed at least 75% of that gap, saving $600,000 in labor and $500,000 in food and beverage costs. Their operational efficiency went from 70–80% up to 92–93% across all locations.
That kind of improvement comes from weekly tracking rather than calculating prime cost once a quarter, which is why the frequency of your calculation matters almost as much as the formula itself.
For more on how prime cost connects to your broader accounting workflow, see R365’s prime cost accounting explained.
Every restaurant’s prime cost breakdown is different. A ramen shop spends more on labor (hand-pulled noodles, complex broths) relative to ingredient cost. A steakhouse spends heavily on protein. A bar has low food cost but needs enough staff to handle a Friday night rush.
Because of this, comparing your prime cost to another restaurant’s number is less useful than comparing your prime cost to your own benchmark over time. Track it weekly. Look at the trend line. If it creeps up 2 points over three weeks, something changed: a vendor raised prices, a new hire is over-portioning, or you added a labor-heavy menu item without adjusting elsewhere.
Tracking prime cost on a weekly cadence gives you 52 chances per year to course-correct instead of 4.
For more on building a weekly prime cost discipline, see R365’s how to track restaurant prime cost and how restaurant operators can catch overruns in real time.
Lowering prime cost means finding where money leaks and fixing specific problems.
Run actual vs. theoretical food cost reports weekly. California Fish Grill achieved at least 1% in food cost savings across 50+ locations using AvT tracking. For a chain that size, 1% adds up to significant dollars.
Enforce portion standards. Weigh proteins, use portion scoops, and check the line daily.
Audit vendor pricing across locations. Acme Oyster House discovered a vendor was charging different prices for the same items at different restaurants. After standardizing with price enforcement, they saw a 3–5% reduction in food costs.
Count inventory weekly, not monthly or (worse) annually. California Fish Grill moved from annual counts to weekly counts, and the accuracy improvement fed directly into better food cost numbers.
Re-engineer your menu. Maru Hospitality Group reduced menu options by about 20%, focused on profitable items, and saw a combined $1.2 million difference in increased sales and decreased food purchases between 2018 and 2019.
Cross-train employees so you can run leaner shifts without sacrificing service.
Schedule based on sales forecasts, not habit. If Tuesday lunch averages $1,800, do not staff it like a $3,000 shift.
Review overtime weekly. A few extra hours per employee per week compounds fast.
Use labor accrual methods that reflect real costs, not estimates. Mid-cycle accruals at month end distort your numbers.
Automating data collection through a platform with POS integration removes the manual spreadsheet work that causes errors and delays. If you are still pulling invoices by hand to value inventory, you are spending hours on work that software handles in minutes. We integrate POS, inventory, and payroll data so these reports run automatically.
For a full list of practical cost control tactics, see R365’s 11 essential techniques for controlling restaurant food costs and how to lower labor costs at your restaurant.
Restaurant expenses fall into two broad categories: controllable and non-controllable.
Controllable expenses (included in prime cost):
Non-controllable or semi-controllable expenses (not included in prime cost):
Prime cost focuses on the controllable side because that is where management decisions have the most direct impact on profitability.
For a full breakdown of restaurant expense categories, see R365’s complete guide to restaurant costs and best tools to track restaurant overhead and operating expenses.
The 60/40 rule is a rough guideline suggesting that within your prime cost, approximately 60% should go to labor and 40% to food cost (or the inverse, depending on the concept). In practice, this ratio varies widely. A quick-service restaurant with minimal front-of-house staff might run 40% labor and 60% food. A fine dining restaurant with a large service team might flip that.
The more useful benchmark is your total prime cost percentage relative to sales. If your combined prime cost is at 58% of sales, the internal split between food and labor matters less than keeping the total within your target range. That said, if your food cost is 35% and your labor is 23%, you probably have a purchasing or waste problem worth investigating.
For more on how prime cost benchmarks vary by concept, see R365’s restaurant food cost benchmarks by concept type and guide to restaurant profitability.
Menu pricing directly affects your COGS and, by extension, your prime cost. The most common approaches:
The menu engineering approach tends to produce the best results for prime cost control because it forces you to look at both cost and sales volume. Maru Hospitality Group used menu item analysis reports to identify which items were profitable and popular, then restructured their menu around those items. Sales on repositioned items jumped more than 20% on the very next menu.
For more on menu pricing strategy, see R365’s restaurant menu pricing strategy guide.
Finding prime cost takes three steps:
To get your prime cost as a percentage of sales, divide prime cost by total sales for that period and multiply by 100.
If you want to do this accurately and without spending hours in spreadsheets, use a restaurant management platform that pulls sales data from your POS, invoice data from your vendors, and labor data from your payroll system into one place. We do this: accounting and operations in a single cloud-based platform integrated with your POS, vendors, payroll, and bank.
For more on how to automate this process, see R365’s accounting software for restaurants and how to track restaurant prime cost.
Use this checklist every week to stay on top of your numbers:
For more on building a weekly tracking routine that holds up across locations, see R365’s 5 restaurant KPIs to track weekly and guide to real-time labor reporting for restaurants.
Prime Cost = Cost of Goods Sold (COGS) + Total Labor Costs. To express it as a percentage, divide prime cost by total sales. A healthy range is 55–60% for most restaurants. See R365’s how to calculate prime cost in a restaurant for a full step-by-step walkthrough.
Restaurant expenses include food and beverage costs, labor (wages, taxes, benefits), rent, utilities, insurance, marketing, equipment, repairs, technology, and licensing. Prime cost covers only the food/beverage and labor portions. See R365’s complete guide to restaurant costs for a full breakdown.
It is a guideline for the internal split of prime cost between labor and food. Some operators target 60% of prime cost going to labor and 40% to food, though the ratio varies by concept. The total prime cost percentage matters more than the internal split. See R365’s prime cost accounting explained for more context.
Add your COGS (starting inventory + purchases – ending inventory) to your total labor costs (wages + taxes + benefits + insurance) for the same period. Divide by total sales to get your prime cost percentage. See R365’s how to find prime cost: prime cost equation explained for a detailed walkthrough.
Food cost percentage, contribution margin, competition-based, demand-driven, cost-plus, value-based, and menu engineering matrix pricing. Each affects your prime cost differently depending on how it balances ingredient cost against sale price. See R365’s restaurant menu pricing strategy guide for more on each approach.
Blog Menu
Knowing your prime cost is the starting point. Acting on it weekly is what separates profitable restaurants from the ones that close. If you want real-time visibility into food and labor costs across every location, with actual vs. theoretical reporting, AP automation, and POS-integrated accounting in one platform, we built Restaurant365 for this purpose.
For 10 tactics you can start using today, download the guide to reducing restaurant prime cost.
Schedule a free demo to see how we track prime cost across your locations in real time.
Last updated: October 2026.
Share this blog:
See why more than 50,000 restaurants use Restaurant365
Restaurant365 brings together accounting, operations, scheduling, and more in a flexible platform—empowering restaurants to choose the solutions they need and scale with confidence.
