Profit Margin Calculator
Optimize Your Pricing Strategy

Gross margin only considers the cost of goods sold (COGS) - the direct cost of producing or purchasing your product. Net margin includes ALL expenses: COGS, shipping, advertising, platform fees, payment processing, packaging, and overhead. Net margin is your true profitability and is always lower than gross margin. For example, if you have a 50% gross margin but spend 20% on ads and 10% on other expenses, your net margin is only 20%.

For eCommerce, a healthy gross margin is 30-50%, and a good net margin is 15-25%. However, this varies by industry. High-volume, low-margin businesses (like groceries) may operate at 5-15% net margins, while luxury goods or handmade items can have 60-80% gross margins and 30-50% net margins. The key is ensuring your net margin covers fixed costs and allows for growth.

Include ALL costs: (1) Cost of Goods Sold (COGS) - product cost, manufacturing; (2) Shipping - fulfillment and delivery; (3) Platform fees - Shopify (2%), Amazon (15%), etc.; (4) Payment processing - 2-3% typically; (5) Advertising - Facebook Ads, Google Ads; (6) Packaging materials; (7) Returns and refunds; (8) Customer service costs; (9) Overhead - rent, utilities, software. Only after subtracting all these do you get net profit.

Strategies to improve margins: (1) Negotiate better supplier prices or find cheaper suppliers; (2) Increase prices strategically - test price increases of 10-20%; (3) Reduce shipping costs through better carriers or bulk shipping; (4) Optimize ad spend - improve targeting and reduce cost per acquisition; (5) Increase average order value with bundles and upsells; (6) Reduce return rates with better product descriptions and photos; (7) Switch to lower-fee platforms - WooCommerce has 0% transaction fees vs Shopify's 2%.

Markup is calculated based on cost, while margin is based on selling price. If an item costs $50 and sells for $100: Markup = ($50 profit / $50 cost) × 100 = 100%. Margin = ($50 profit / $100 price) × 100 = 50%. Markup is always higher than margin for the same product. Retailers often think in markup (e.g., '2x markup'), but profit margin is more useful for understanding actual profitability.

This is normal and expected! The difference represents your operating expenses. Common culprits: (1) High advertising costs - if you spend 30% of revenue on ads, that directly reduces net margin by 30%; (2) Platform and payment fees - Shopify + Stripe can eat 4-5% of revenue; (3) Shipping costs not passed to customers; (4) Returns and refunds - can be 5-15% in some categories; (5) Overhead costs spread across units. A 50% gross margin can easily become a 15-20% net margin after all expenses.

It depends on your business model and market. High-margin, low-volume works for: luxury products, custom/handmade items, niche markets with little competition. Low-margin, high-volume works for: commodity products, highly competitive markets, products with economies of scale. Most successful eCommerce businesses balance both: maintain healthy margins (30-50% gross, 15-25% net) while scaling volume through marketing and optimization.

Review margins monthly and adjust pricing quarterly. Factors that change margins: supplier price increases, shipping rate changes, platform fee updates, seasonal advertising costs, exchange rates (for international sourcing). Set up alerts for major cost changes and recalculate immediately. During high-growth periods or market volatility, review weekly.