Profit Margin Calculator
Calculate gross profit and profit margin percentage from item cost and selling price. Compare margin vs markup instantly and free in your browser.
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How to use Profit Margin Calculator
- 1
Enter your product wholesale cost and intended retail selling price.
- 2
Click Calculate to compute gross profit dollar amount and margin percentage.
- 3
Analyze the resulting gross profit margin and compare with markup.
Capabilities
- Calculates gross profit amount and gross margin percentage
- Simultaneous markup percentage computation for side-by-side comparison
- Instant client-side calculation in your web browser
How to Calculate Gross Profit Margin & Revenue
Profit margin is a core profitability metric that measures what percentage of total sales revenue a business keeps as gross profit after accounting for the cost of goods sold (COGS). Setting sustainable prices requires understanding how revenue, cost, and margin percentages interact.
Formula: Margin % = (Profit / Selling Price) * 100. Indicates how many cents of gross profit the business generates from each dollar of customer sales.
Formula: Gross Profit = Selling Price - Cost. The residual dollar cash generated before paying overhead expenses, rent, and corporate taxes.
Worked Example & Margin vs. Markup Comparison
Suppose an item has an Item Cost of $100 and sells at a Selling Price of $150:
Gross Profit: $150 - $100 = $50.00
Profit Margin (% of Selling Price): ($50 / $150) * 100 = 33.33%
Markup (% of Item Cost): ($50 / $100) * 100 = 50.00%
Notice: The exact same $50 profit represents a 33.33% margin, but a 50% markup on cost. Confusing the two can lead to severe pricing underestimation.
To calculate required retail prices using percentage markup over unit cost, use Markup Calculator.
This tool operates in a sandbox directly inside your web browser. All parsing, processing, and downloads are rendered locally. Your file size, metadata, and contents never cross the network. It works completely offline.
Frequently Asked Questions
How do I calculate gross profit margin percentage?
Gross profit margin is calculated as: Gross Profit Margin (%) = [(Selling Price - Cost) / Selling Price] * 100. For example, if an item costs $60 and sells for $100, profit is $40 and margin is ($40 / $100) * 100 = 40%.
What is the key difference between profit margin and markup?
Profit margin expresses profit as a percentage of the selling price (revenue), whereas markup expresses profit as a percentage of the initial cost. Because cost is smaller than selling price for profitable goods, markup percentage is always higher than profit margin percentage.
Can gross profit margin ever exceed 100%?
No. Unless cost is negative, gross profit cannot exceed total revenue, meaning profit margin can never reach or exceed 100%. Markup, by contrast, can easily exceed 100% (e.g., selling an item that costs $10 for $30 yields a 200% markup).
What is considered a good profit margin?
A healthy profit margin varies significantly by industry. High-volume retail and grocery businesses often operate on slim margins between 2% and 5%, while specialized consulting, software, and luxury goods frequently maintain margins of 50% or higher.
How does offering a discount impact my profit margin?
Discounting reduces the selling price directly while unit costs remain constant, disproportionately compressing profit margin. A 20% discount on an item with a 40% margin cuts net unit profit in half.