How to calculate profit margin (formula and examples)

Profit margin shows how much of your revenue you keep as profit after covering costs. Calculating profit margin helps you understand pricing, cost control, and overall business performance. Once you know your margin, you can compare results across time, benchmark against peers, and spot where profitability is slipping.

What is profit margin?

Profit margin is the percentage of your revenue that remains after subtracting costs. It shows how efficiently you turn sales into profit and is a core metric for pricing, planning, and performance tracking.

You track profit margins to:

• Compare performance over time
• Benchmark against competitors
• Identify where cost control or pricing improvements are needed

Tracking margin consistently helps you catch problems early, whether that's rising input costs, pricing that hasn't kept up with inflation, or operating expenses growing faster than revenue. A solid profitability analysis gives you the framework to act on what the numbers reveal.

Profit margin formula

To calculate profit margin, subtract your costs from revenue to find your profit, then divide that profit by revenue and multiply by 100 to get a percentage.

Here's the formula:

Profit margin (%) = (Net income / Revenue) * 100

Here's how to calculate it step by step:

1. Find your total revenue for the period you want to measure
2. Subtract all expenses (COGS, operating expenses, interest, and taxes) to get net income
3. Divide net income by revenue to get a decimal
4. Multiply by 100 to convert the decimal to a percentage

For example, say your business generates $500,000 in revenue and has $450,000 in total expenses:

• Net income = $500,000 – $450,000 = $50,000
• Profit margin = ($50,000 / $500,000) * 100 = 10%

That means you keep 10 cents of every dollar in revenue as profit.

Types of profit margins

There are different ways to calculate profit margin depending on which costs you include. Each type answers a different question about your profitability.

Gross profit margin

Gross profit margin measures how much of your revenue remains after subtracting the cost of goods sold (COGS), such as materials and direct labor. It shows how efficiently you produce or deliver your product or service.

Gross profit margin = (Revenue – COGS) / Revenue * 100

Use gross profit margin to evaluate pricing, sourcing, and production efficiency before accounting for overhead or administrative costs. If your revenue is $500,000 and COGS is $300,000, your gross profit margin is 40%.

Operating profit margin

Operating profit margin goes a step further by subtracting operating expenses, such as salaries, rent, and marketing, from gross profit. It reflects how well you manage day-to-day business costs but excludes interest and taxes.

Operating profit margin = Operating income / Revenue * 100

Service-based businesses often report stronger operating margins, while capital-intensive industries like manufacturing and logistics tend to operate with tighter margins due to higher overhead.

Net profit margin

Net profit margin is the bottom-line profitability metric. It shows what you keep after every expense, including COGS, operating costs, interest, taxes, and one-time charges.

Net profit margin = Net income / Revenue * 100

Because it captures every cost, net profit margin is the most comprehensive view of how profitable your business actually is.

How to calculate a target profit margin

To hit a target profit margin, work backward from cost using Price = Cost / (1 − target margin), rather than guessing at a markup and hoping the math works out.

Say a product costs you $60 to make. For a 20% margin, divide $60 by 0.80 to get a selling price of $75. For a 30% margin, divide $60 by 0.70 to get $85.71.

Here's how the required price shifts as your target margin climbs, using that same $60 cost:

Once you've set a target price, test it against real demand before rolling it out.

What is the difference between margin and markup?

Margin and markup describe the same dollar of profit but from different angles. Margin is profit as a percentage of the selling price, while markup is profit as a percentage of cost. Confusing the two leads to pricing mistakes.

Take a product that costs you $60 to make and sells for $100:

• Margin = ($100 – $60) / $100 * 100 = 40%
• Markup = ($100 – $60) / $60 * 100 = 66.7%

Same $40 in profit, two very different percentages. Markup always looks larger because it's calculated against a smaller base.

When to use margin

Use margin for financial reporting, comparing profitability across products or time periods, and analyzing how much of each sale becomes profit. It's the right metric when you're evaluating overall business performance.

When to use markup

Use markup when you're setting prices. It's the practical lever for figuring out what to charge based on your cost and the profit you want to earn on each unit sold.

How to calculate profit margin percentage in Excel

Excel makes it easy to calculate margin once you know the formula. The basic formula is:

=(Revenue Cell–Cost Cell)/Revenue Cell

Then format the cell as a percentage. Here's how to build a simple margin calculator in four steps:

1. Step 1: Enter your revenue in one cell (for example, B2)
2. Step 2: Enter your total costs in another cell (for example, B3)
3. Step 3: In a third cell, enter the formula =(B2–B3)/B2
4. Step 4: Format that cell as a percentage

You can build a matching required-price calculator with the target-margin formula: =Cost/(1–TargetMargin). For a $60 cost and a 30% target margin, that's =B3/(1–0.3), which returns $85.71.

From there, you can link the spreadsheet to accounting exports so revenue and expense data update automatically. That keeps margin calculations accurate as the numbers change.

What is a good profit margin?

A good profit margin depends on your industry, business model, and growth stage, so a generic benchmark can be misleading. The better question is whether your margin is improving over time and how it stacks up against peers in your sector, which you can assess through a profitability analysis.

Good profit margins by industry

Here's how typical net profit margins compare by industry:

Context and trend beat any universal number. A 10% margin can be excellent in one industry and a warning sign in another.

How to improve your profit margin

Calculating margin is just the starting point. Improving it comes from a mix of better data, smarter pricing, and tighter cost control, not blanket cost cutting.

Track income and expenses consistently

You can't improve what you don't measure. Consistent expense tracking is the foundation for any margin improvement effort because it shows you exactly where revenue is going.

Inconsistent categorization, missing receipts, and delayed reporting all distort your margin numbers. Clean, current data lets you spot cost creep before it eats into profitability.

With Ramp's Accounting Agent, businesses see 70% fewer coding corrections within the first month as the agent learns from feedback, so your margin calculations rest on accurate data instead of manual spreadsheet cleanup.

Automate financial processes

Manual processes waste time and introduce errors that compound over the course of a year. Ramp's Accounting Agent auto-codes every transaction the moment it posts, across GL, department, class, and location, with no rules to build or maintain.

That drives a 3x faster monthly close and 3.5x more transactions auto-coded than rules-only tools, and every AI decision carries a confidence level, rationale, and override option, so you get speed without losing the audit trail. Pairing that with ERP automation can further reduce the manual handoffs that slow down reporting.

Reduce operating costs

Review recurring expenses regularly to find savings that don't hurt output. Renegotiating supplier contracts, eliminating redundant software, and consolidating tools can all trim overhead.

Pay close attention to underused subscriptions and shadow IT spending. These quietly drain margins without anyone noticing until you do a full audit.

Optimize your pricing strategy

Use margin calculations to make sure your pricing covers costs and delivers the profitability you need. If you have a target margin in mind, you can reverse-engineer the right price using this formula:

Price = Cost / (1 – Target margin)

For example, if a product costs $60 and you want a 40% margin, divide $60 by 0.60 to get a selling price of $100. Test price changes gradually to balance margin gains against any impact on demand.

Track profit margins in real time with Ramp

Calculating profit margins accurately requires clean expense data, but manual categorization and scattered receipts create opportunities for error. Ramp's accounting automation software eliminates the guesswork by coding every transaction automatically, collecting receipts in real time, and syncing everything to your ERP so you always know where your money goes.

Ramp's Accounting Agent learns your chart of accounts and applies the right GL codes, departments, classes, and locations to every expense as it posts. You get complete visibility into cost centers and spending patterns without chasing down receipts or fixing miscoded transactions after the fact. When expenses land in the right categories from day one, you can calculate margins with confidence and spot trends before they impact profitability.

Here's how Ramp helps you track and improve margins:

• AI-powered coding: Ramp codes transactions across all required fields in real time, so expenses are categorized correctly and margins reflect actual costs
• Automated receipt collection: Ramp texts employees for missing receipts and matches them to transactions automatically, eliminating the manual work that slows down reporting
• Real-time spend visibility: Track expenses by department, project, or cost center as they happen, so you can identify margin erosion early and adjust spending before it's too late
• Seamless ERP sync: Ramp syncs coded transactions to your accounting system automatically, so financial reports are always current and margin calculations are based on complete data

Try a demo to see how Ramp gives you the clean expense data you need to calculate and improve profit margins.