Break-even for a small business: what a price cut costs

The number that decides whether the month was worth it

Every small business has a sales level below which it loses money, however busy the shop floor looks. That level is the break-even point. It does not depend on how hard anyone works. It depends on three numbers: what you pay every month regardless of sales, what each unit costs to make, and what you sell it for.

Our guide on running a small business by the numbers covers the five checks an owner should run. This post goes deeper on the first one, using a small manufacturer as the example, and on the decisions that quietly move the line: a price cut, a rent rise, a jump in input costs.

A worked example: a namkeen unit in Indore

This is an illustration with assumed numbers. A small unit fries and packs namkeen and sells 200 g packs to distributors at ₹50 a pack, before GST. Prices here exclude GST throughout, because GST is collected for the government and offset by the tax paid on inputs; it is not the unit's revenue. The GST calculator separates the two if your invoices quote inclusive prices.

Fixed costs, every month

Variable cost, per pack

Each pack therefore contributes ₹50 − ₹32 = ₹18 towards fixed costs. That is a contribution margin of 36%.

Break-even = fixed costs ÷ contribution per unit = 2,16,000 ÷ 18 = 12,000 packs a month, or ₹6 lakh of sales.

The unit actually sells 15,000 packs. Its profit is 3,000 packs above break-even × ₹18 = ₹54,000 a month. Its margin of safety, the share of sales it could lose before slipping into a loss, is 3,000 ÷ 15,000 = 20%.

Put the same numbers into the break-even calculator and it also reports operating leverage: 5.0 here. That means a 10% fall in volume cuts profit by about 50%. At 13,500 packs the unit earns ₹27,000, half of what it earns at 15,000.

What a price cut does to the line

A large distributor asks for 5% off. The owner reasons that 5% is small and the extra volume will make up for it. Run it through.

At ₹47.50 a pack, contribution falls from ₹18 to ₹15.50. The variable cost did not move, so the whole discount comes out of contribution, which drops by 14%.

A 5% price cut takes profit from ₹54,000 to ₹16,500, a fall of 69%. To get back to ₹54,000 the unit must sell (2,16,000 + 54,000) ÷ 15.50 = 17,419 packs, which is 16% more volume for the same money. A 5% discount needs a 16% volume gain just to stand still. The rule of thumb: when contribution margin is thin, a price cut needs several times its own size in extra sales.

The other direction works the same way. A 5% increase to ₹52.50 lifts profit to ₹91,500, and the unit could lose 12% of its volume (down to 13,171 packs) and still earn the same ₹54,000. Whether customers would accept that is a market question. The arithmetic only tells you what is at stake.

Fixed costs move the line more slowly

A ₹15,000 rent rise looks like the bigger blow, because it is a large round number. It is not. Divided by ₹18 of contribution, it adds 833 packs to break-even and costs ₹15,000 of profit, rupee for rupee. The price cut cost ₹37,500 a month at the same volume.

A ₹2 rise in variable cost sits in between: it costs ₹30,000 a month at 15,000 packs, because it hits every single pack. Input inflation in oil or packaging is often what squeezes a small manufacturer, and it shows up first as a falling gross margin. The profit margin calculator is the place to watch that number month by month.

Profit break-even is not cash break-even

The frying-line loan costs ₹15,000 a month in interest, which is in the fixed costs above. Suppose the EMI also repays ₹30,000 of principal. Principal is not an expense, but it leaves the bank account all the same. The cash break-even is (2,16,000 + 30,000) ÷ 18 = 13,667 packs, much closer to the 15,000 the unit actually sells. Check your own loan's split in the EMI calculator; if the lender quoted a flat rate, the flat vs reducing calculator shows what it really costs.

Cash also arrives late. Distributors who pay in 45 days mean a profitable month can still leave the account short, which is what the working capital calculator measures. And when the unit asks for a bigger loan, the bank will run its own version of this test through the debt service coverage ratio.

The rule of thumb, and the pitfalls

• Know your contribution per unit before you negotiate. A discount request is a contribution question, not a revenue question.
• Classify costs for the period you are planning. Piece-rate labour is variable; a salaried packer is fixed this year. Getting this wrong moves the break-even by hundreds of units.
• Use an average for a mixed product range. If you sell several pack sizes, weight the contribution by your actual sales mix, and re-check when the mix changes.
• Keep a margin of safety of 20% or more if demand is seasonal. A unit that sells most of its stock around festivals can be well above break-even in October and below it in May.
• Keep the owner's own drawings in view. If the owner draws ₹50,000 a month to run the household, that is a fixed cost in all but name. A business that "breaks even" after paying everyone except its owner is losing money. A household that depends on it needs its own buffer too; the emergency fund calculator suggests at least nine months of essentials for the self-employed.

A business that is still spending ahead of sales should also know how long its cash lasts at the current loss; that is the burn rate calculator. Surplus cash waiting for a slow month is better parked in a liquid fund than in a current account, though that changes nothing about where the line sits.

This post is for education only. The example uses assumed costs and prices; your own unit's numbers, GST treatment and loan terms will differ. Speak to your accountant before acting on a pricing decision.