How to Calculate Profit Margin (and How It Differs From Markup)

Margin tells you how many paise of every rupee of sales you keep as profit. A 25% margin means ₹25 of every ₹100 sold is profit before overheads.

Suppose a product costs ₹600 and you want a 30% margin. Selling price = 600 ÷ 0.70 = ₹857.14. Check: profit ₹257.14 ÷ ₹857.14 = 30%.

To convert: markup = margin ÷ (100 − margin) × 100, and margin = markup ÷ (100 + markup) × 100.

Gross margin uses only the cost of the goods. Net margin also subtracts operating expenses — rent, salaries, shipping, platform fees, marketing. A product can have a healthy gross margin and still lose money once delivery and commissions are included; the Profit Calculator lets you add those expenses.

If you're GST-registered, the GST you collect isn't revenue and the GST you pay on purchases is usually recovered as input tax credit. Using tax-inclusive figures inflates both revenue and cost and distorts the margin.

The gap widens as margins rise: a 50% margin needs a 100% markup. The Markup Calculator converts in both directions.

A seller buys a product for ₹400 and lists it at ₹629 including 18% GST. The taxable value is ₹629 ÷ 1.18 = ₹533.05, so the gross margin is (533.05 − 400) ÷ 533.05 = 25%.

Now add the costs of selling each unit — packing ₹15, shipping ₹60 and a marketplace fee of, say, ₹50. Profit falls to ₹8.05 and the net margin to 1.5%. The product looked healthy on gross margin but barely breaks even after fulfilment. Always check the margin after variable selling costs; the Profit Calculator includes them.

Average the margins by sales value, not by product count. If you sell ₹1,00,000 of product A at a 30% margin and ₹50,000 of product B at 10%, total profit is ₹30,000 + ₹5,000 = ₹35,000 on ₹1,50,000 of sales — a blended margin of 23.3%, not the simple average of 20%.

A 20% discount wipes out 80% of the profit. Before running a sale, check how many more units you'd need to sell to make the same total profit: here, five times as many at 20% off. See setting a selling price that survives GST and discounts.

1. Treating markup as margin when setting prices.
2. Calculating on GST-inclusive prices.
3. Leaving out freight-in, packing and payment charges from cost.
4. Ignoring returns and damaged stock, which reduce effective margin.
5. Judging a product on gross margin alone when shipping and fees are high.

Each level answers a different question. Gross margin says whether products are priced well against their purchase cost. Contribution margin says how much each sale adds after selling it. Net margin says whether the business as a whole is profitable. Use contribution margin for break-even analysis.

Service businesses price time rather than goods, so work backwards from what you need to earn. A consultant who wants ₹1,20,000 a month of profit, has ₹30,000 of monthly overheads and can realistically bill 100 hours a month needs (1,20,000 + 30,000) ÷ 100 = ₹1,500 an hour before GST. Billable hours are usually well below hours worked, once you count sales, admin and gaps between projects — be conservative.

1. Review prices regularly. Costs rise quietly; a price set two years ago may no longer deliver your target margin. Recalculate from current cost ÷ (1 − target margin).
2. Negotiate purchase costs and terms. A 5% lower purchase price on a 25%-margin product lifts margin to about 28.75% at the same selling price.
3. Cut variable selling costs. Right-sized packaging, better courier rates and fewer returns raise contribution on every order.
4. Sell more of your high-margin products. Feature them, bundle them and train staff to recommend them; the blended margin rises even if prices don't change.
5. Discount deliberately. Use targeted or time-limited offers instead of permanent price cuts, and check the margin before launching each one.

Track gross and net margin every month. A falling gross margin points to pricing or purchasing; a falling net margin with steady gross margin points to overheads or selling costs.