Restaurant Profitability Analysis: Key Metrics, Formulas & Example

To track restaurant profitability, compare a handful of numbers against sales every week: prime cost (food and beverage cost plus total labor, usually 55-65% of sales), food cost percentage, labor cost percentage, net profit margin, and your break-even point. Sales per labor hour and RevPASH (revenue per available seat hour) then show how well you use your staff and your seats. Calculate them from the same weekly data, watch the trend, and act when a number drifts by more than a point or two.

Below are the formulas, typical ranges, and a full monthly P&L for an example casual restaurant, followed by a weekly routine that takes less than an hour.

What a Restaurant Profitability Analysis Actually Shows

A profitability analysis answers three questions: are you making money, where does each sales dollar go, and which lever (menu prices, food cost, labor, or rent) moves the result most. That is different from checking the bank balance. Cash can look healthy while the operation itself loses money on every cover.

Restaurants run on thin margins. Net profit for full-service independents is commonly cited in the low-to-mid single digits, roughly 3-6% of sales, with well-run operations often doing better. At 5% net, a restaurant with $1.2 million in annual sales keeps about $60,000. A 2-point rise in food cost that nobody notices for a year costs $24,000, or 40% of that profit. That is why these metrics are worth tracking weekly.

Key Restaurant Profitability Metrics and Formulas

The ranges below are common rules of thumb, not targets that fit every concept: a steakhouse and a coffee shop land in different places.

Prime Cost

Prime cost is the sum of cost of goods sold (food, beverage, and anything else you resell) and total labor cost (wages, salaries, payroll taxes, and benefits). Because it usually makes up well over half of sales, it is where most profit is won or lost.

Prime cost % = (COGS + total labor cost) ÷ total sales × 100. Full-service restaurants often run around 60-65%, and quick-service concepts closer to 55-60%. When prime cost climbs above your normal range, look at food cost and labor separately to see which one moved.

Food Cost Percentage

Food cost percentage tells you how much of each food sales dollar goes to ingredients. First work out cost of goods sold for the period from your inventory counts and invoices, then divide it by food sales.

1. COGS = beginning inventory + purchases − ending inventory
2. Food cost % = food COGS ÷ food sales × 100
3. Example: $9,500 opening inventory + $30,200 purchases − $9,460 closing inventory = $30,240 COGS, and $30,240 ÷ $96,000 food sales = 31.5%

Then compare the actual figure with your theoretical food cost: what your recipes say you should have used, given what you sold. A gap of more than a point or two usually points to waste, over-portioning, spoilage, theft, or supplier price increases that never made it into menu prices. Our guide to controlling food costs covers how to close that gap.

Labor Cost Percentage: Formula and How to Calculate It

Labor cost percentage shows how much of your sales goes to paying the team. The formula is labor cost % = total labor cost ÷ total sales × 100, with both numbers taken from the same period: a week, a pay period, or a month.

Example: a week with $27,700 in sales, $7,300 in hourly and salaried wages, and $1,200 in payroll taxes and benefits has a total labor cost of $8,500, which is 30.7% of sales. Many full-service restaurants run labor at roughly 30-35% of sales and quick-service at 25-30%, although states with high minimum wages push those numbers up. To test a schedule before you post it, plug the hours and wages into the labor cost calculator.

Net Profit Margin

Net profit margin is the bottom line: net profit ÷ total sales × 100, after food, labor, rent, operating expenses, interest, and depreciation. Many operators also track operating profit before interest and depreciation, which makes locations easier to compare.

Break-Even Point

Your break-even point is the sales you need each month before the restaurant makes a dollar of profit. Split costs into fixed (rent, salaried managers, insurance, loan payments, software) and variable (food, hourly labor, card fees, supplies), then use break-even sales = fixed costs ÷ (1 − variable costs as a % of sales). The break-even calculator does the math and converts the result into covers per day.

Sales per Labor Hour and RevPASH

Sales per labor hour (SPLH) is sales divided by total labor hours worked. It measures productivity rather than cost, so a round of raises does not distort it. RevPASH, revenue per available seat hour, is sales divided by seats × hours open, and shows which dayparts use your dining room well and which leave seats empty. Both are most useful by shift: a strong weekly SPLH can hide a Tuesday lunch where four servers looked after 20 guests.

Worked Example: A Monthly P&L for a Casual Restaurant

These numbers are illustrative, not benchmarks. They describe an 80-seat casual restaurant open about 10 hours a day, with $120,000 in monthly sales: $96,000 from food and $24,000 from beverages.

• •Sales: $120,000 (100%)
• •Cost of goods sold: $36,000 (30.0%), made up of food at $30,240 (31.5% of food sales) and beverages at $5,760 (24% of beverage sales)
• •Labor: $39,600 (33.0%), made up of hourly wages at $25,800, a salaried kitchen manager and GM at $8,400, and payroll taxes, workers' comp, and benefits at $5,400
• •Prime cost: $75,600 (63.0%)
• •Occupancy: $10,200 (8.5%), made up of rent at $8,500 and common-area charges and property tax at $1,700
• •Other operating expenses: $20,100 (16.8%): utilities $4,200, card processing $3,300, paper and cleaning supplies $3,000, marketing $2,400, repairs $1,800, insurance $1,500, accounting $1,500, linen $900, POS and software $900, waste removal $600
• •Restaurant operating profit: $14,100 (11.8%)
• •Depreciation $3,000 and loan interest $1,500
• •Net profit before tax: $9,600 (8.0%)

What the Numbers Tell You

Prime cost at 63% is inside the usual range, and 8% net is a healthy result. Now look at what small drifts do. If food cost creeps from 31.5% to 34% of food sales without a menu price change, COGS rises by $2,400 and net profit falls to $7,200. If labor also slips two points, to 35% of sales, that is another $2,400, and net profit drops to $4,800. Half the profit is gone on the same sales.

Productivity tells a second story. The team worked 1,600 hourly labor hours in the month, so sales per labor hour were $120,000 ÷ 1,600 = $75. The dining room had 80 seats × 10 hours × 30 days = 24,000 seat hours, so RevPASH averaged $5.00. Split by daypart, the picture changes: a Friday dinner with $6,400 in sales across 80 seats and 4 hours is $20 RevPASH, while a Tuesday lunch with $960 across 80 seats and 3 hours is $4. That shows where a promotion or a leaner lunch schedule will pay off.

Break-Even for the Example Restaurant

Treat occupancy ($10,200), salaries ($8,400), insurance, accounting, software, and marketing ($6,300), plus depreciation and interest ($4,500) as fixed: $29,400 a month. Everything else, $81,000, moves with sales, which makes variable costs 67.5% of sales. Break-even sales are $29,400 ÷ (1 − 0.675), or about $90,500 a month. That is roughly $3,000 a day, or about 94 covers a day at a $32 average check. Because hourly labor never falls perfectly with sales, treat the real figure as a bit higher.

How to Track Restaurant Profitability Week by Week

The monthly P&L from your bookkeeper is the official record, but it often arrives weeks after the month closes. For day-to-day control, build a short weekly report yourself.

Most food cost gaps start in the kitchen, not on the invoices: trim loss heavier than the recipe assumes, spoilage, over-portioning, and product thrown out without being recorded. MiseKit logs yields, waste, and write-offs as the kitchen weighs them and keeps recipe costs in line with current invoice prices, so the difference between theoretical and actual food cost comes with item names and dollar amounts attached.

Profit Is Not the Same as Cash

A profitable P&L does not guarantee money in the bank. Inventory build-ups, loan principal, equipment purchases, and sales tax payments all take cash without showing up as expenses in the same month. Track your cash position and a rolling 13-week forecast next to the profit metrics; our guide to managing restaurant cash flow shows how to set one up.

Warning Signs in Your Numbers

• •Prime cost above your normal range two or more weeks in a row
• •Actual food cost more than 1-2 points above theoretical food cost
• •Labor cost % rising while sales per labor hour falls, which usually means the schedule did not follow a drop in sales
• •Break-even sales above roughly 85-90% of your average sales, which leaves almost no room for a slow month
• •A profitable P&L but a shrinking bank balance for several weeks
• •Covers or average check declining for three or more weeks in a row