I recently had a conversation with a restaurant owner who was convinced his restaurant was thriving because it was bringing in more than $1 million a year in revenue.
It’s easy to see why he felt confident. Earning seven figures sounds like success and often means a busy dining room, loyal customers, and lots of hard work. However, revenue alone doesn’t show if the restaurant is profitable, has enough cash to pay its bills, or if those sales are actually delivering a good return.
A restaurant might sell a lot of food but still face financial trouble if too much of each sales dollar goes to food, drinks, labor, fees, waste, and other costs.
Revenue shows how much the restaurant sold, but not how much it actually kept.
To really know if a restaurant is financially healthy, owners need to look past just revenue. These five numbers give a clearer picture.
1. Net Sales, not just the amount deposited in the bank
The first number to understand is net sales.
Gross sales may include transactions that don't become revenue the restaurant keeps. Discounts, refunds, voids, and complimentary items can all reduce sales. Sales tax collected from customers belongs to the taxing authority, and tips collected for employees are not restaurant income. Deposits from credit-card processors and third-party delivery platforms may also be reduced by fees, so bank deposits may differ from the sales recorded in the point-of-sale system.
This is why you shouldn’t use bank deposits as a stand-in for sales.
Restaurant bookkeeping should match up POS sales with deposits from payment processors and delivery platforms. Explain any differences; don't ignore them.
Owners need to understand what’s driving net sales:
Are guest counts increasing, or is the average check simply higher?
Which dayparts and sales channels are growing?
Are discounts, comps, refunds, or voids increasing?
How much revenue is coming through third-party delivery services, and what does that channel cost?
Growing sales is good, but how you achieve that growth matters. Extra sales only help if you can make them without spending too much.
2. Food and Beverage Cost Percentages
Once sales are reliable, the next question is how much product the restaurant used to generate those sales.
Food cost percentage is generally calculated as:
Food cost ÷ food sales × 100
Beverage cost should be calculated separately when possible:
Beverage cost ÷ beverage sales × 100
It’s important to separate food and beverage costs because they usually have different cost structures. Combining them into one percentage can hide problems in either area.
Purchases alone do not equal food cost. If a restaurant buys a large amount of inventory near the end of the month, some of that product may still be on the shelves when the month closes. A more meaningful calculation uses inventory:
Beginning inventory + purchases − ending inventory = cost of goods sold
If you don’t do regular and accurate inventory counts, your monthly food-cost percentage might not tell the full story.
Accurate invoice coding is important. One vendor invoice might include food, drinks, paper goods, cleaning supplies, and smallwares. If you record the whole invoice in one account, bookkeeping is faster, but you might miss important changes in your costs.
When food or beverage cost rises, the owner should be able to investigate why. Possible causes include:
Vendor price increases
Recipe or portion inconsistencies
Menu prices that have not kept pace with ingredient costs
Excessive waste or spoilage
Theft or unrecorded use
Incorrect purchasing or receiving practices
An unfavorable shift in the items customers are ordering
The percentage shows that something has changed. Detailed records on purchasing, inventory, and recipes help you figure out what changed and how to fix it.
3. Labor Cost
Labor is another big cost that can eat into your sales without you noticing.
At its simplest, labor cost percentage is:
Labor cost ÷ net sales × 100
Owners should know exactly what’s included in their labor costs. Hourly wages are just one part. Salaried managers, overtime, payroll taxes, benefits, and other labor expenses may also count. At the very least, use the same definition each period so your comparisons make sense.
Don’t manage labor just by the percentage. A low labor cost isn’t always good if it means you’re understaffed, service is slipping, employees are burning out, or important cleaning and prep work isn’t getting done.
Useful labor reporting can help an owner see:
Overtime by employee or department
Scheduled hours compared with actual hours
Labor cost by front of house, back of house, and management
Sales per labor hour
Labor cost by day or daypart
Whether staffing changes are keeping pace with changes in sales
The goal isn’t just to cut labor costs. It’s to have the right people working at the right times so you keep service, food quality, and the guest experience strong.
4. Prime Cost
Prime Cost brings the restaurant’s two largest controllable cost areas together:
Cost of goods sold + labor cost = Prime Cost
It can also be expressed as a percentage of net sales:
Prime Cost ÷ net sales × 100
This is one of the most useful numbers for restaurant finances because it shows how much of each sales dollar is spent before you pay rent and other operating costs.
A restaurant may have an acceptable food-cost percentage but an unsustainable labor cost, or vice versa. Looking at Prime Cost keeps either category from being viewed in isolation.
Prime Cost is something you can control. Owners and managers can influence it by managing purchasing, receiving, portion sizes, waste, menu prices, scheduling, overtime, training, and productivity. You can’t change rent or insurance during a dinner shift, but you make decisions about food and labor every day.
No single ideal Prime Cost percentage fits every restaurant. A full-service restaurant, fast-casual concept, bar, bakery, and catering business do not operate with identical cost structures. The most useful comparisons consider the restaurant’s concept, service model, budget, historical performance, and prior-year results.
You should check Prime Cost often enough to spot problems while you can still fix them, not months after profits are gone.
5. Net Operating Profit, and the Cash Behind It
After reviewing sales, food and beverage cost, labor, and Prime Cost, the owner still needs to know what remains after the restaurant’s other operating expenses are paid.
Net operating profit shows whether the restaurant’s ordinary operations are actually producing a profit. It accounts for expenses such as occupancy, utilities, merchant processing, delivery commissions, repairs, software, insurance, marketing, and other costs required to run the business.
An owner should review both the dollar amount and the percentage of sales:
Net operating profit ÷ net sales × 100 = operating profit margin
But even profit doesn’t tell the whole story about cash.
A restaurant can report a profit and still be short on cash because of debt payments, equipment purchases, past-due bills, owner withdrawals, or timing differences between money coming in and money going out. The reverse can also happen: the bank balance may temporarily look healthy because it includes borrowed money, unpaid vendor bills, sales tax not yet remitted, or other funds that are not truly available to spend.
That’s why owners need both a reliable profit-and-loss statement and a clear view of cash flow, debts, and upcoming bills.
The real question isn’t just, “Is there money in the bank today?” It’s also, “Is the restaurant’s regular business bringing in enough money to keep things running?”
How Strong Sales Can Still Produce Weak Results
Imagine that a restaurant’s sales increase, but several other changes occur at the same time:
Vendor prices rise, but menu prices do not
Overtime increases because the schedule is not aligned with demand
Portions become inconsistent
Delivery sales grow, along with the related commissions and fees
Inventory counts are skipped, so food usage is unclear
Repairs and debt payments consume the remaining cash
The restaurant is busier, and revenue is up, but the owner might be working harder for less profit and wondering why the bank balance isn’t growing.
This is why even an impressive revenue number can’t prove a restaurant is truly thriving.
What a Useful Restaurant Financial Report Should Show
A restaurant owner should not have to interpret a generic profit-and-loss statement with dozens of unexplained accounts. Good management reporting should help answer practical questions:
Are POS sales, payment-processor deposits, and delivery-platform activity reconciled?
What are food, beverage, and labor costs in both dollars and percentages?
What is Prime Cost, and how is it changing over time?
Which costs are rising faster than sales?
Is the restaurant producing an operating profit?
Is cash flow sufficient for upcoming obligations?
What needs attention before the next reporting period?
Financial reports are most useful when they help you make timely decisions. A percentage on a page is just a starting point—the real value is knowing what’s behind the numbers.
Revenue Is the Starting Point, Not the Verdict
Hitting $1 million in annual sales is a big achievement. It often means years of effort, loyal customers, and a strong concept. But on its own, it doesn’t prove your restaurant is financially healthy.
Restaurant owners should know not just what the business sold, but what it cost to make those sales, how much was kept, and whether there’s enough cash for the next payroll, vendor payment, repair, or growth opportunity.
Revenue shows how busy your restaurant is. Food cost, labor, Prime Cost, operating profit, and cash flow show if that activity is actually making your business stronger.
Are your restaurant’s numbers telling the full story?
Take the free Restaurant Bookkeeping Health Check to identify possible gaps in your sales, payroll, cost, cash-management, and financial-reporting processes.