Full-Service Restaurant Prime Cost Calculator
Calculate food, beverage and labor cost to see how much of your sales is consumed before rent, utilities, insurance and other overhead.
Enter Your Restaurant Numbers
Your Prime Cost
Enter your sales, COGS and labor.
How to Use the Restaurant Prime Cost Calculator
This restaurant prime cost calculator helps full-service restaurant owners measure the combined impact of food cost, beverage cost and labor cost. Together, these expenses make up prime cost—one of the most important financial metrics for understanding restaurant profitability.
Enter your food sales, beverage sales, food cost of goods sold, beverage cost of goods sold and total labor expense for the same accounting period. The calculator will determine your total prime cost, prime cost percentage and the amount of sales remaining after these major operating costs.
Use actual numbers from your POS, payroll and accounting system whenever possible. Comparing consistent weekly or monthly periods makes it easier to identify trends and determine whether food, beverage or labor costs are moving in the wrong direction.
What Is Prime Cost in a Full-Service Restaurant?
Prime cost combines cost of goods sold and labor. These are generally among the largest operating costs that restaurant management can directly influence.
Prime cost percentage compares those expenses with the restaurant's net sales.
The sales remaining after prime cost must still cover rent, utilities, insurance, repairs, merchant processing, software, professional services and other operating expenses before producing bottom-line profit.
Why Restaurant Prime Cost Can Increase
Prime cost can rise even when restaurant sales are increasing. This happens when food, beverage or labor expenses grow faster than revenue. Monitoring the individual components helps identify where the pressure is coming from.
- Ingredient and beverage purchase prices increase
- Recipe portions become larger than established standards
- Waste, spoilage, comps and remakes increase
- Schedules are not adjusted to match sales volume
- Overtime or payroll burden increases
- Discounts reduce net sales without reducing operating costs
- Menu prices fail to keep pace with rising costs
- Low-volume dayparts remain overstaffed
Food Cost, Beverage Cost and Labor Should Be Reviewed Separately
The total prime cost percentage is useful, but it should not be evaluated by itself. A reasonable total can sometimes hide a problem in one department because another cost happens to be unusually low.
Review food COGS, beverage COGS and labor individually before making operating decisions. This makes it easier to determine whether the restaurant needs better purchasing controls, recipe costing, portion control, pricing or scheduling.
Use Prime Cost to Make Better Restaurant Decisions
Tracking prime cost over time can help restaurant owners see whether operational improvements are actually reaching the financial statements. Rather than reacting to one unusual week, compare several consistent periods and investigate meaningful changes.
Prime cost should also be considered alongside contribution margin, daypart productivity and dining-room capacity. Together, these numbers provide a much clearer picture of how the restaurant is operating.
Analyze the Numbers Behind Your Prime Cost
Use our Menu Contribution Margin Calculator to evaluate how much individual menu items contribute after direct food cost.
Then use the Restaurant Labor by Daypart Calculator to compare labor efficiency across lunch, dinner and other service periods.
The Restaurant Table Turn & Revenue Calculator can help you evaluate dining-room capacity and potential revenue during high-demand periods.
Explore the complete collection on our Full-Service Restaurant Financial Management page or browse all Margin & Menu Restaurant Resources .