How to Track Restaurant Profitability
Master restaurant financial management with prime cost calculation, break-even analysis, profit margin tracking, and daily sales monitoring. Identify profit leaks, optimize costs, and make data-driven decisions for sustainable profitability.

Most restaurant owners can't answer 'Are we profitable?' with confidence. They see money in bank account and assume success. But cash flow masks underlying problems—high revenue doesn't equal profit. Restaurants fail not from lack of customers but from not tracking numbers. Here's how to track profitability systematically and identify problems before they become fatal in your cafe or restaurant.
Profitability Reality
Average restaurant profit margin: 3-5% net. Restaurant doing €500,000 annual revenue at 4% margin = €20,000 annual profit. 2% increase in food cost or labor without notice = profit becomes loss. Weekly tracking prevents disasters, monthly review too slow to catch problems.
The Prime Cost Formula
Prime cost is single most important metric in HoReCa operations:
Understanding Prime Cost
Weekly Prime Cost Tracking
Calculate prime cost every Monday for previous week. Takes 30 minutes: pull sales from POS, food invoices, labor hours. Trend line shows problems immediately. Monthly tracking too slow—already lost thousands before noticing.
Track Food Cost Percentage
COGS percentage reveals pricing and waste issues in restaurant management:
Food Cost Calculation
1Calculate Period COGS
Beginning Inventory + Purchases - Ending Inventory = COGS. Example: €10,000 starting + €25,000 purchased - €12,000 ending = €23,000 COGS.
2Determine Food Cost Percentage
Food Cost % = (COGS / Food Sales) × 100. Example: €23,000 COGS / €75,000 sales = 30.7% food cost. Compare to target and previous periods.
3Identify Target Ranges
Quick service: 25-30%, Casual: 28-35%, Fine dining: 32-38%. Lower isn't always better—too low may indicate portion sizes too small or prices too high.
4Investigate Variances
Food cost jumps 3%+ = investigate immediately. Common causes: theft, waste, over-portioning, pricing errors, supplier increases not passed to menu.
Monitor Labor Cost Percentage
Labor typically biggest expense after food in cafes and HoReCa:
Labor Cost Components
Labor Cost Targets
Labor Cost % = (Total Labor Cost / Revenue) × 100. Example: €35,000 labor / €100,000 revenue = 35% labor cost. Adjust staffing if consistently above target.
Calculate Break-Even Point
Know exactly how much revenue needed to cover costs in restaurant operations:
Break-Even Analysis
Break-Even Reality Check
If break-even is 80-90% of current revenue, operating on razor edge. One slow month = loss. Healthy restaurant: break-even at 60-70% of average revenue, leaving cushion for variability and profit.
Daily Sales Per Labor Hour
Productivity metric showing labor efficiency in cafes and restaurants:
- •Formula: Daily Sales / Total Labor Hours = Sales Per Labor Hour (SPLH)
- •Example: €3,500 sales / 40 labor hours = €87.50 SPLH
- •Quick service target: €60-80 SPLH, Casual dining: €80-120 SPLH, Fine dining: €100-150 SPLH
- •Low SPLH = overstaffed, High SPLH = understaffed or service suffering
- •Track by shift: lunch vs dinner, weekday vs weekend to optimize scheduling
- •Trend over time: improving SPLH = better efficiency, declining = bloating staff
Track Profit Margins
Multiple margin metrics show financial health in HoReCa operations:
Key Margin Calculations
Monitor Cash Flow Weekly
Profitability on paper means nothing without cash in restaurant management:
Cash Flow Tracking
1Weekly Cash Report
Every Monday: Beginning Cash + Revenue - Expenses = Ending Cash. Track actual cash position. Profitable on P&L but no cash = problem with receivables or timing.
213-Week Cash Flow Forecast
Project next 13 weeks: expected sales, scheduled expenses, loan payments. Shows when cash tight, when comfortable. Prevents surprises.
3Minimum Cash Reserve
Maintain 2-3 months operating expenses in reserve. €15,000 monthly expenses = €30,000-45,000 minimum cash. Buffer for unexpected expenses or slow periods.
4Identify Cash Gaps
When expenses exceed revenue in forecast, plan ahead: reduce inventory orders, defer non-essential purchases, arrange credit line before needed.
Cash vs Profit
Can be profitable but cash-poor: inventory tied up cash, customers owe money, large purchases. Can have cash but unprofitable: loans provided cash, selling assets, not paying bills. Track both—profitable + positive cash flow = healthy business.
Key Performance Indicators Dashboard
Track these KPIs weekly for complete financial picture in cafes and HoReCa:
Weekly Metrics
Monthly Metrics
Variance Analysis
Compare actual to expected, investigate differences in restaurant operations:
Simple Profitability Tools
Don't need complex accounting software to start tracking in cafes and restaurants:
Essential Tracking Tools
Don't Wait for Month-End
Monthly P&L from accountant arrives 15-30 days after month ends. By then, 6 weeks of damage if problems exist. Weekly self-tracking catches issues in real-time. Accountant provides official record, your tracking provides operational control.
Red Flags Requiring Immediate Action
These signals demand urgent investigation in restaurant management:
- •Prime cost over 70%: losing money on operations, unsustainable
- •Food cost increase 3%+ in one period: theft, waste, or pricing problem
- •Labor cost over 40%: overstaffed or revenue too low for current staffing
- •Negative cash flow 2+ consecutive weeks: running out of money soon
- •Declining sales 3+ consecutive weeks: marketing problem or competition
- •Break-even over 85% of current sales: no margin for error
- •Increasing variance between theoretical and actual food cost: control problem
- •Net profit under 2%: vulnerable to any cost increase or sales drop
"Started tracking prime cost weekly instead of waiting for monthly financials. Discovered food cost crept from 32% to 38% over 8 weeks—€6,000 lost to unnoticed waste and over-portioning. Implemented portion controls, retrained staff, renegotiated supplier prices. Food cost back to 31% within 6 weeks. Weekly tracking saved restaurant from quarterly disaster."
Restaurant Profitability Questions
What is prime cost and why does it matter for restaurants?
How do I calculate my restaurant's food cost percentage?
What labor cost percentage should restaurants target?
How often should I track restaurant financial metrics?
What is a healthy profit margin for restaurants?
Key Takeaway
Restaurant profitability tracking requires weekly monitoring of prime cost (COGS + labor, target 55-65%), food cost percentage (target 28-35% casual), labor cost percentage (target 30-35% casual), break-even point (healthy at 60-70% of average revenue), and cash flow. Calculate prime cost weekly—takes 30 minutes, prevents disasters. Key metrics: sales per labor hour, net profit margin (3-5% target), variance analysis. Red flags: prime cost over 70%, food cost increase 3%+, negative cash flow 2+ weeks, labor over 40%. Don't wait for monthly financials—self-track weekly catches problems in real-time. Restaurant at 4% net margin = 2% cost increase eliminates profit entirely. Weekly tracking = operational control, accountant = official record.
