Prime cost — food cost plus labor cost combined — is the single most important profitability metric in restaurant operations. A healthy prime cost is 55–65% of revenue for most formats. Above 70% and it is very difficult to generate meaningful profit after occupancy and operating expenses. Food cost is almost always the faster and less disruptive lever to improve first.
Food cost and labor cost are the two largest controllable expenses in restaurant operations. Together they form prime cost — the metric that most accurately predicts whether a restaurant will be profitable after all expenses are paid. Understanding where each component should be for your format, and which to address first, is fundamental to running a profitable operation.
Prime Cost = Cost of Goods Sold + Total Labor Cost
Prime Cost % = (Prime Cost ÷ Total Revenue) × 100
Total labor cost includes all wages (kitchen and front of house), manager salaries allocated to operations, payroll taxes, and benefits. It does not include your own owner draw unless you are paying yourself a market-rate salary.
| Restaurant Type | Food Cost % | Labor Cost % | Prime Cost % | Healthy Target |
|---|---|---|---|---|
| Full-Service Casual | 28–32% | 30–35% | 58–67% | Healthy: Below 65% |
| Fine Dining | 30–38% | 33–40% | 63–78% | Healthy: Below 70% |
| Fast Casual | 25–30% | 25–30% | 50–60% | Healthy: Below 62% |
| Quick Service | 25–32% | 25–30% | 50–62% | Healthy: Below 62% |
| Bar / Gastropub | 20–28% | 28–35% | 48–63% | Healthy: Below 63% |
| Catering | 25–35% | 25–35% | 50–70% | Healthy: Below 65% |
Sources: National Restaurant Association Restaurant Operations Data Abstract; Labor cost includes wages, payroll taxes, and benefits.
When prime cost is above benchmark, most operators instinctively look at labor first — it is the larger number in most full-service concepts. That instinct is usually wrong.
First, compare supplier prices and find your low-hanging fruit. Then implement portion control on your top 5 protein items. Then audit waste. Only after those three steps — if prime cost is still above benchmark — should you look seriously at labor scheduling and staffing levels.
Upload your distributor price sheets and see exactly where you are overpaying. Most operators find a 10–15% price gap on their first comparison — enough to move prime cost meaningfully without touching labor.
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There are specific situations where labor should be the priority:
In these cases, a labor scheduling audit — comparing scheduled hours against actual cover counts by daypart — typically reveals 2–4 weekly shifts that can be eliminated or reduced without affecting service quality.
Here is how a real prime cost calculation works for a full-service casual restaurant doing $45,000/week in revenue:
| Category | Weekly Amount | % of Revenue |
|---|---|---|
| Revenue | $45,000 | 100% |
| Food & beverage purchases | $14,400 | 32.0% |
| Hourly wages (BOH + FOH) | $9,900 | 22.0% |
| Salaried labor (managers, chef) | $3,150 | 7.0% |
| Payroll taxes & benefits (est. 12% of total labor) | $1,566 | 3.5% |
| Total labor cost | $14,616 | 32.5% |
| Prime cost (food + labor) | $29,016 | 64.5% |
At 64.5%, this restaurant is in the healthy range for a full-service casual concept (target: below 65%). If food cost were 35% instead of 32%, prime cost would jump to 67.5% — crossing into the warning zone and cutting profit by roughly $1,350/week.
This is why a 3-point swing in food cost matters so much. It does not just reduce your ingredient spend — it directly moves prime cost, which is the metric that determines whether the restaurant is structurally profitable.
Use the Prime Cost Calculator to enter your actual numbers. If the result is above 65% for a casual concept or above 70% for fine dining, start with the food cost side — it is the faster lever.
Both food cost and labor cost fluctuate seasonally, and understanding the pattern helps you anticipate rather than react.
Food cost tends to be highest in winter and early spring when fresh produce prices peak, protein demand is high (holiday catering), and supply chain disruptions from weather are most common. Mozzarella, chicken, and produce in particular see significant winter price spikes. Operators who compare distributor prices weekly during these months capture the most savings — because distributor-to-distributor price gaps widen when markets are volatile.
Labor cost tends to be highest in summer when seasonal demand peaks (patios open, tourist traffic, longer hours) and competition for hourly workers is strongest. Many operators add seasonal staff at higher wages to cover the volume, then struggle to right-size when fall arrives.
The practical implication: budget for higher food cost in Q1 and higher labor cost in Q3. If your prime cost is tight, the danger months are the transitions — when one component is still elevated from its seasonal peak while the other is starting to climb.
Food cost and labor cost are not independent variables — they trade off in ways that operators need to understand.
Buying pre-processed products reduces labor but increases food cost. Pre-cut vegetables, pre-portioned proteins, and pre-made sauces all carry a premium over raw ingredients. A restaurant buying pre-cut onions at $0.40/lb more than whole onions is paying a labor premium through the food cost line. Whether this tradeoff is profitable depends on your specific labor rate and prep volume.
House-made prep reduces food cost but increases labor. Making your own stocks, dressings, sauces, and dough from scratch lowers ingredient cost but requires skilled labor hours. For high-volume items where the skill is straightforward (dough, basic sauces), house-made is almost always more economical. For low-volume specialty items, the labor cost of small-batch production may exceed the savings.
The right balance depends on your concept, your labor market, and your volume. Track both sides of the tradeoff — not just the ingredient cost — when making make-versus-buy decisions.
Prime cost is the sum of food and beverage cost plus total labor cost (wages, benefits, payroll taxes). It is the most important profitability metric in restaurant operations because it represents the two largest controllable expenses. A healthy prime cost is 55–65% of revenue. Above 70% is a serious warning sign.
Restaurant labor cost typically runs 25–35% of revenue. Full-service restaurants average 30–35% due to higher service staff ratios. Fast casual and QSR average 25–30% due to more efficient service models. Fine dining can run 35–40% for skilled kitchen and floor staff.
Food cost is usually the faster and less disruptive lever to pull first. Reducing labor cost often involves staffing changes that affect service quality and team morale. Supplier price comparison, portion control, and waste reduction can improve food cost by 3–5 percentage points without any staff changes. Address food cost first, then optimize labor scheduling if prime cost is still above benchmark.
A prime cost of 55–62% is excellent for a full-service restaurant. 63–68% is healthy. Above 70% means the business is likely not generating meaningful profit after occupancy and other operating expenses are paid.
Prime cost = food cost % + labor cost %. A restaurant with 33% food cost and 32% labor has a 65% prime cost — healthy. The same restaurant with 38% food cost has a 70% prime cost — at the warning threshold. Reducing food cost 5 points directly reduces prime cost 5 points, which is the difference between a profitable and a breakeven operation.
There is no fixed ideal ratio since formats vary significantly. The key metric is prime cost (the combined total), not the individual split. That said, most full-service operators target food cost in the 28–33% range and labor in the 28–33% range, aiming for a combined prime cost of 60–65%.
It depends on your labor cost. Pre-cut vegetables cost 20–40% more per pound than whole vegetables, but eliminate prep labor. For high-volume restaurants with expensive labor, the tradeoff is often favorable. For lower-volume operations with available prep labor, buying whole and cutting in-house is usually more economical. Calculate both the ingredient cost difference and the labor time saved before deciding.
Food cost typically peaks in winter and early spring (Q1) when fresh produce prices are highest, protein demand spikes from holiday catering, and supply chain disruptions from weather are most common. Distributor-to-distributor price gaps also widen during volatile market periods, making weekly price comparison especially valuable in these months.