Profit Margin Calculator
Calculate your net profit dollars and net profit margin % from total revenue and all accumulated business expenses.
Net Profit Margin Inputs
Net profit margin is the percentage of total sales revenue remaining after deducting all product COGS, shipping, marketplace fees, ad spend, and operating overhead. To calculate net margin, subtract total business expenses from total revenue, divide by total revenue, and multiply by 100.
What the Profit Margin Calculator Does
The Profit Margin Calculator measures your store’s ultimate financial health. While gross margin evaluates product sourcing efficiency, net profit margin evaluates overall business performance after every single expense tier is deducted from total sales revenue.
Who Should Use This Tool
Ideal for store owners, multi-channel merchants, and financial controllers preparing monthly P&L statements or assessing company valuation.
Net Profit & Operating Terms Defined
Gross sales revenue generated across all channels.
Combined COGS, shipping, ad spend, software apps, and staff labor.
The final percentage of total revenue remaining as actual profit.
Net Profit Margin Formula Breakdown
Worked Example: Multi-Channel Merchandiser
A merchant selling across Shopify and Amazon generates $42,000 in monthly total revenue.
Gross vs. Contribution vs. Net Profit Margin
Understanding the three margin tiers helps pinpoint financial leaks in your store operations.
Common Net Margin Errors
Frequently Asked Questions
What is net profit margin?
Net profit margin is the percentage of revenue left after deducting all product costs, shipping, platform fees, payment processing, advertising, and operating expenses.
Financial Disclaimer: MerchSites tools and guides provide estimates for product pricing, margin analysis, and expense planning. All calculations are performed locally in your web browser. Content is for educational purposes and does not constitute formal tax, legal, or accounting advice.