Running a restaurant is no easy feat—especially when profit margins are notoriously slim. But with the right strategies, you can transform tight numbers into a thriving business. Whether you’re managing a bustling full-service restaurant, a trendy fast-casual spot, or a cosy café, there are plenty of ways to maximise profitability without sacrificing quality or customer satisfaction.
Here’s how you can turn those slim margins into steady, sustainable growth.
What Are Profit Margins (and Why Do They Matter)?
Before diving into strategies, let’s clarify what profit margins actually are:
- Gross Profit Margin: The percentage left after subtracting the cost of goods sold (CoGS)—your raw ingredients and materials. This measures operational efficiency.
- Net Profit Margin: The percentage left after accounting for all expenses, including rent, utilities, and payroll. This is your ultimate measure of profitability.
While high sales figures might look impressive, they mean little without strong margins. A restaurant with £100,000 in revenue but only £10,000 in net profit is a far cry from thriving.
Understanding Profit Margins Across Restaurant Types
Profit margins can vary depending on your service model:
- Full-Service Restaurants: Slimmer margins (3–5%) due to higher overheads and labour costs.
- Fast Casual: Better margins (6–9%) thanks to lower labour expenses and quicker customer turnover.
- Catering Services: Margins often hover around 7–8% because of lower overhead costs.
- Food Trucks: Potentially strong margins due to minimal staff and rent costs, but sales opportunities may be limited.
Knowing where your business fits can help you set realistic financial targets.
How to Calculate Your Profit Margins
1. Gross Profit Margin Formula:

Example: If your revenue is £100,000 and CoGS is £30,000:
Gross Profit Margin = (70,000÷100,000)×100= 70%
2. Net Profit Margin Formula:

Example: If gross profit is £70,000 and operating expenses total £60,000:
Net Profit Margin = (10,000÷100,000)×100 = 10%
Use these calculations to gauge your restaurant’s financial health and pinpoint where improvements can be made.
Proven Strategies to Boost Profit Margins
1. Monitor Your Metrics
Keep tabs on sales, expenses, and customer trends. Use tools like restaurant-specific accounting software to track metrics such as:
- CoGS: Helps refine your menu pricing and identify waste.
- Labour Costs: One of your biggest expenses—fine-tuning schedules can cut costs without sacrificing service.
- Overhead Costs: Fixed expenses like rent and utilities.
Link: Want to deep dive into metrics? Check out our guide to food cost percentages.
2. Streamline Staffing
Analyse sales trends to adjust staffing during peak and off-peak hours. Overstaffing drains profits, while understaffing impacts service quality. Smart scheduling software can help you strike the perfect balance.
3. Leverage Technology
Invest in systems that simplify operations and reveal insights:
- Point-of-Sale (POS) Systems: Track sales, manage inventory, and optimise order processing.
- Venue Management Software: Especially useful for restaurants hosting events. Discover how FlowStow can revolutionise your operations.
- Online Ordering Platforms: A must for attracting digital-savvy diners while boosting efficiency.
4. Reduce Food Waste
Food waste eats into profits—literally. Combat it by:
- Ordering smarter based on historical data.
- Storing ingredients properly to maximise shelf life.
- Designing a menu that uses overlapping ingredients.
5. Build a Strong Online Presence
A steady stream of customers is vital for healthy margins. Ensure your restaurant is visible by:
- Maintaining a mobile-friendly website.
- Actively managing Google and Yelp reviews.
- Engaging with followers on social media.
6. Retain Your Staff
High staff turnover is costly. Focus on retention by:
- Offering competitive pay and benefits.
- Creating a positive, engaging work environment.
- Investing in employee development and training.
7. Plan for Sales Fluctuations
Sales dips are inevitable, but you can weather them with strategies like:
- Introducing seasonal menu items.
- Launching loyalty programmes to keep customers coming back.
- Offering mid-week or off-peak promotions to drive traffic.
Key Takeaways
Profit margins are the backbone of your restaurant’s financial health. By focusing on strategic cost management, leveraging technology, and building strong customer and employee relationships, you can boost your bottom line without compromising quality.
Looking for more tips? Explore our podcast episode on maximising restaurant profitability for actionable insights!
Ready to make every pound count? Start maximising your margins today!

If you want to enhance your venue’s offerings even further, FlowVenues can help.
Get in touch today to see how our all-in-one platform can simplify your venue management and take your venue to the next level!
FlowStox CMO
Beth Merton