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Profit Margin & Break-even Calculator

Calculate net profit margins, markups, packaging, digital gateway fees, and break-even units.

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Most small businesses know their sales and their bank balance and guess everything in between. The profit margin and break-even calculator replaces the guess: enter cost price, selling price, packaging, payment-gateway or UPI fees, and fixed monthly costs, and it returns gross margin, net margin, markup, and the number of units you must sell each month to break even — the four numbers that decide whether a product is worth stocking and a price is worth quoting.

Margin vs markup

  • Markup is profit as a percentage of cost: buy at ₹200, sell at ₹300 → markup 50%.
  • Gross margin is profit as a percentage of selling price: the same sale is a 33.3% margin.
  • Net margin subtracts variable per-unit costs (packaging, gateway fee, shipping subsidy) and the unit's share of fixed costs.

Confusing markup with margin is the classic pricing error — a "40% margin" applied as a 40% markup on cost actually yields 28.6%. Both are shown side by side here; the gross margin calculator and net profit margin calculator go deeper on each.

Break-even

Break-even units = fixed costs ÷ contribution per unit, where contribution = selling price − variable cost per unit. A stall with ₹30,000 monthly rent and staff, selling samosas at ₹20 with ₹9 of ingredients and packaging, needs 30,000 ÷ 11 = 2,728 samosas a month — about 91 a day — before it earns a rupee. The contribution margin calculator shows how price and cost changes move that number.

How to use the calculator

  1. Enter cost per unit (purchase or production cost including inward freight and non-creditable GST).
  2. Enter selling price (excluding GST, since GST is collected for the government, not earned).
  3. Add per-unit variable costs: packaging, payment fee (a percentage for cards/gateways; UPI P2M above ₹2,000 now carries MDR for larger merchants — check the UPI MDR calculator), delivery subsidy, commission.
  4. Enter monthly fixed costs — rent, salaries, electricity, software, loan EMIs.
  5. Read gross margin, net margin, markup, contribution per unit and break-even units (and revenue). Adjust price to see the effect.

GST and the margin

Keep GST out of margin math. If you sell at ₹1,180 inclusive at 18%, your revenue is ₹1,000; the ₹180 is passed on (net of input credit on purchases). Composition dealers, who cannot collect GST, must treat their 1% or 5% tax as a cost — the GST calculator helps separate the two. The GST-on-MRP guide covers inclusive pricing.

Improving margin without raising prices

  • Buy better: negotiate a 3% cash discount or larger packs; the purchase order tool formalises terms.
  • Cut variable cost: right-size packaging and use the volumetric weight calculator to avoid dimensional-weight surcharges on shipping.
  • Mix: push higher-margin add-ons; a ₹30 dip at 70% margin lifts a ₹200 order's blended margin measurably.
  • Discount smartly: use the discount calculator to see the margin after stacked offers before printing tags.
  • Fixed-cost leverage: once past break-even, each extra unit contributes the full contribution margin — volume matters more than a few rupees of price.

The pricing of a whole business, from rent to inventory to payment fees, is worked through in How to start a small business in India in 2026.

Frequently asked questions

What is a good profit margin for a small business in India?

It depends on the trade: kirana and FMCG retail run 8–15% gross, apparel 40–60%, restaurants 60–70% gross but 8–15% net, services 30–60% net. Compare with your break-even rather than a generic benchmark.

Should selling price include GST in the calculation?

No. Use the price excluding GST as revenue; GST collected is a liability, not income. The calculator has a toggle to strip GST from an inclusive price.

How do I include payment gateway fees?

Enter the fee percentage (typically 1.5–2% plus 18% GST on the fee for cards and gateways; zero for most UPI P2PM merchants). The calculator applies it per unit.

What is contribution margin?

Selling price minus variable cost per unit — the amount each sale contributes toward fixed costs and, after break-even, profit.

How do I calculate break-even revenue?

Fixed costs ÷ contribution margin ratio (contribution ÷ price). The calculator shows both units and revenue.