The Break-Even Formula
Break-Even Units = Fixed Costs รท Contribution Margin per Unit Contribution Margin = Selling Price โ Variable Cost per Unit Example: A tiffin delivery business in Mumbai has: โข Monthly fixed costs: โน30,000 (rent โน15,000 + helper salary โน12,000 + packaging โน3,000) โข Variable cost per tiffin: โน50 (ingredients + gas) โข Selling price per tiffin: โน120 Contribution Margin = โน120 โ โน50 = โน70 Break-Even = โน30,000 รท โน70 = 429 tiffins per month At 429 tiffins, the business covers all costs. Anything above that is profit.
How to Categorize Your Costs Correctly
The most common mistake in break-even calculations is misclassifying costs. Fixed costs do not change with sales volume: shop rent or home kitchen rental, full-time employee salaries, insurance premiums, software subscriptions, loan EMI payments, and GST registration fees. Variable costs scale directly with output: raw materials, packaging, delivery charges, platform commissions (Swiggy/Zomato take 20โ30%), and payment gateway fees. Some costs are semi-variable: electricity has a fixed base plus variable usage. For break-even purposes, estimate the variable component based on historical bills and treat the rest as fixed.
Using Break-Even for Pricing Decisions
Break-even analysis reveals the impact of pricing changes before you implement them. A โน10 price increase on a product with โน50 variable cost and โน5,000 monthly fixed costs: At โน100 selling price: CM = โน50, Break-even = 100 units At โน110 selling price: CM = โน60, Break-even = 83 units A 10% price increase reduces the break-even point by 17%. This is why pricing decisions have outsized impact on profitability. Discounts work in reverse: a 10% discount on the same product raises break-even from 100 units to 125 โ a 25% increase in required sales volume.
Break-Even for D2C and Online Sellers in India
Online sellers must account for platform fees as variable costs. On Amazon India or Flipkart, marketplace fees run 5โ25% of selling price depending on category. On Meesho, seller fees are lower but shipping costs are separate. On self-hosted Shopify stores, payment gateway fees (Razorpay, Cashfree) run 1.75โ2% per transaction. For a D2C brand selling a โน500 product on Amazon with 15% marketplace fee: Effective selling price = โน500 โ โน75 = โน425 If product cost is โน180, CM = โน245 With โน50,000 monthly fixed costs: Break-even = 204 orders This analysis helps D2C founders decide which sales channels are viable at current volumes.