Prime Cost
If there’s one number that can make or break your restaurant’s success, it’s this: prime cost. It’s the ultimate financial truth-teller, revealing whether you’re running a lean, profitable operation—or one heading straight for trouble.
And unlike rent or utilities, this is one number you can control.
What Is Prime Cost?
Prime cost is the total of your two biggest, most controllable expenses:
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Labor Costs: Wages, benefits, payroll taxes, and training
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COGS (Cost of Goods Sold): All food, beverages, ingredients, and consumables
It’s expressed as a percentage of your total revenue:
Prime Cost = (Labor + COGS) ÷ Total Revenue × 100
If your monthly revenue is ₹10,00,000 and your labor + COGS totals ₹6,00,000, your prime cost is 60%.
What’s a Healthy Prime Cost?
Here’s the benchmark range:

Anything higher? 🚩 You’re either overstaffed, overbuying, or underpricing.
Why Prime Cost Is So Important
Most restaurant owners obsess over total sales. But sales don’t equal profit.
Prime cost tells you:
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How efficiently you operate
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How well you manage your team and your inventory
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Whether your revenue is turning into real, usable profit
Even a 2% drop in prime cost can mean lakhs saved annually.
What Goes Into Prime Cost?
Labor Costs (25–35% of Revenue)
Includes:
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Staff wages (front & back of house)
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Overtime pay
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Payroll taxes & benefits
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Hiring & training costs
COGS (28–35% of Revenue)
Includes:
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Food and beverage ingredients
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Spices, condiments, disposables
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Anything that ends up on the plate or in the glass
How to Calculate Prime Cost Accurately
Use your POS system and accounting software
Track labor hours and wages daily
Update inventory and recipe costs regularly
Monitor it weekly, not just monthly
Smart operators check it during promotions, holidays, and menu changes too.
How to Reduce Prime Cost (Without Cutting Corners)
1. Use Menu Engineering
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Highlight high-margin dishes
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Rework or remove low-profit items
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Standardize portions to reduce waste
2. Optimize Labor Scheduling
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Schedule based on sales forecasts
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Cross-train staff to fill multiple roles
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Avoid overstaffing during slow shifts
3. Manage Inventory Like a Pro
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Don’t over-order perishables
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Monitor waste closely
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Use FIFO (First In, First Out) method
4. Leverage Technology
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POS systems with built-in cost tracking
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Inventory tools that flag high-variance items
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Labor management software to optimize shifts
The Prime Cost Balancing Act
Don’t slash labor so much that service suffers. And don’t skimp on ingredients that lower food quality.
Smart restaurant owners optimize both sides together — because they’re deeply connected.
Example: Buying pre-cut veggies may raise COGS but reduce prep labor. What’s more efficient overall?
Treat Prime Cost as a Daily Habit, Not a Monthly Report
Prime cost isn’t just a number you glance at in your P&L statement. It’s a daily management tool.
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Make small adjustments often
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Review your numbers weekly
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Celebrate improvements with your team
Because when you manage your prime cost, you don’t just run a restaurant—you build a sustainable business.