Restaurant Prime Cost: How to Calculate and Cut It
Why prime cost matters more than almost any other number
If you run a restaurant or café, prime cost is usually the fastest way to see whether the business is getting healthier or drifting off course. Prime cost is simple: labor + cost of goods sold. In other words, what you spend on people and what you spend on food and drink to produce each sale.
That matters because those two lines tend to dominate the P&L. The National Restaurant Association says food and labor costs are the two biggest expense categories for restaurants, each accounting for about 33 cents of every sales dollar on average, while Toast notes that a healthy labor-cost target often lands around 30% of gross revenue depending on concept. https://www.restaurant.org/research-and-media/research/restaurant-economic-insights/analysis-commentary/restaurants-remain-resilient-despite-challenging-business-conditions/ https://pos.toasttab.com/blog/on-the-line/restaurant-labor-cost-percentage
For independent operators, prime cost is useful because it is operational, not abstract. You can act on it this week by changing schedules, prices, prep, purchasing, portions, or menu mix.
How to calculate restaurant prime cost
Use this formula:
Prime Cost = Total Labor Cost + Total Cost of Goods Sold
Prime Cost % = Prime Cost ÷ Total Sales x 100
Your labor cost should include more than hourly wages: salaries, overtime, payroll taxes, benefits, paid time off, and other employer-paid labor expenses. Toast specifically recommends including all compensation-related expenses when calculating labor cost. https://pos.toasttab.com/blog/on-the-line/restaurant-labor-cost-percentage
Your COGS should include the actual ingredients and beverages used during the period, adjusted for beginning inventory, purchases, and ending inventory.
A quick example
- Weekly sales: $25,000
- Total labor cost: $7,500
- COGS: $8,000
- Prime cost: $15,500
- Prime cost %: 62%
That 62% does not automatically mean trouble, but it does mean there is not much room left for rent, software, utilities, insurance, debt, and profit. Toast points to roughly 60% as a common combined benchmark for labor plus COGS, though the right number varies by format. https://pos.toasttab.com/blog/on-the-line/restaurant-labor-cost-percentage
What is a good prime cost percentage?
A practical rule of thumb is to aim for around 60% or lower, then refine by concept. Quick-service businesses may run lower labor and higher throughput, while full-service concepts may tolerate higher labor because service is part of the product. Toast lists typical labor ranges from roughly 20% to 25% for quick service, 25% to 30% for fast casual, 30% to 35% for casual dining, and 35% to 45% for fine dining. https://pos.toasttab.com/blog/on-the-line/restaurant-labor-cost-percentage
The bigger point in 2026 is that pressure remains high. The National Restaurant Association reports restaurant labor costs remain above historical norms, average hourly earnings have risen sharply since 2020, and food costs are still a major source of margin pressure. https://www.restaurant.org/research-and-media/research/restaurant-economic-insights/analysis-commentary/restaurant-labor-costs-are-well-above-historical-averages/ https://restaurant.org/education-and-resources/resource-library/rising-food-costs-tight-supplies-more-challenges-for-industry/
Five practical ways to lower prime cost without hurting service
1. Schedule to sales, not to habit
If Friday lunch has softened and Tuesday dinner is growing, staffing should move with it. Square notes restaurant labor often falls in the 25% to 35% range of revenue and can be managed better with tighter scheduling and time tracking. https://squareup.com/us/en/the-bottom-line/starting-your-business/restaurant-start-up-costs
2. Track menu mix and contribution, not just food cost
A dish with a slightly higher food cost can still be a winner if it sells well and carries strong gross profit dollars. Review your top sellers, weak sellers, and items with high waste every month.
3. Reduce modifier and prep leakage
Missed add-ons, inconsistent portions, and untracked comps quietly raise prime cost. A POS that captures modifier pricing and routes the exact order to the kitchen helps protect margin.
4. Unify dine-in, QR, and pickup orders
When online ordering, QR ordering, and front-of-house tickets flow through different tools, errors and duplicate labor show up fast. One menu, one kitchen queue, and one reporting system make labor and COGS easier to control.
5. Watch payment costs too
Prime cost does not include card-processing fees, but margin decisions should. Stripe’s published standard pricing is 2.9% + 30¢ for domestic online card payments and 2.7% + 5¢ for domestic in-person card payments in the U.S. https://stripe.com/pricing
Where software helps
The best software does not lower prime cost by magic. It lowers it by removing waste: overstaffing, missed modifiers, disconnected menus, delayed reporting, and messy handoffs between ordering channels.
That is where Dream AIOS for Restaurants & Cafés fits naturally. It gives independent operators a full restaurant stack in one system: POS, floor plans, kitchen and bar routing, online ordering, tableside QR ordering, scheduling, payroll, accounting, and reporting. Because it is a finished, fully hosted platform rather than a patchwork of add-ons, the same sales and labor data can be used to understand prime cost faster. You can also see the broader platform at https://dreamaios.com/platform or review plans at https://dreamaios.com/pricing.
A simple weekly prime-cost routine
- Pull weekly sales.
- Total labor, including taxes and payroll burden.
- Total COGS for the same period.
- Calculate prime cost %.
- Compare against the prior 4 weeks.
- Choose one labor action and one menu or purchasing action for next week.
If you only track one operating number more closely this month, make it prime cost. It is simple enough to review weekly, detailed enough to expose problems early, and practical enough to improve with better systems and tighter habits.