Break-Even Point, Explained: The Number Every Shop Owner Should Know but Most Don't

Ask most shop owners how much they need to sell in a day just to not lose money, and you will get a shrug, a guess, or a confident number that turns out to be wrong. Not because they are careless — they work harder than almost anyone — but because nobody ever sat them down and showed them the one figure that answers it cleanly.

That figure is your break-even point: the exact amount you have to sell before a single naira of profit shows up. Below it, you are losing money no matter how busy the floor feels. Above it, every sale finally starts paying you. This guide explains what break-even is, why so few operators ever work it out, and how to find yours — in units and in money — without an accounting degree.

What Break-Even Actually Means

Your break-even point is the moment in a day, a week, or a month when your sales have covered every cost of being open, and you are sitting at exactly zero — not behind, not ahead.

Picture it as a line on the floor. Every sale moves you toward that line. Cross it, and the next sale is profit. Stop short of it, and you went home having paid to keep the lights on for the day. The whole trick of running a healthy shop is knowing where that line sits, so you can tell — by lunchtime, not at year-end — whether today is a winning day or a polite-looking loss.

Most operators have never drawn that line. They watch the till total climb and feel like a busy day must be a good day. Sometimes it is. Sometimes it absolutely is not, and the only way to know the difference is the maths in this article.

Why Most Operators Never Compute It

There are three honest reasons break-even goes uncalculated.

It needs two numbers most people don't have to hand. To find break-even you need your true costs split a particular way — into the costs that stay the same no matter what you sell, and the costs that move with every sale. Most operators have never separated their costs like that. They have a vague monthly outflow and a vague margin, and the two never meet on paper.

It feels like accounting, and accounting feels like later. Break-even sounds like the kind of thing the bookkeeper handles at tax time. So it waits. And waiting is exactly how a shop trades busily for a year and ends it no richer.

The till lies, kindly. A full day's takings looks like success. The number that would tell you otherwise — what it actually cost to earn that day — is not printed anywhere, so the comfortable assumption wins.

None of these are character flaws. They are just gaps. Let's close them.

Fixed Costs: What You Pay Just to Open

Fixed costs are the costs that do not change with how much you sell. Sell nothing all day and you still owe them. Sell out completely and they do not go up. They are the price of simply existing as a business this month.

For a small kitchen or a provisions shop, fixed costs usually include:

• Rent on the shop or kitchen
• Salaries for staff you pay whether the day is busy or dead
• Subscriptions and software you pay monthly
• A base utility charge — the standing portion of your power, water, internet
• Insurance, licences, and loan repayments

The defining test is simple: if I sold zero today, would I still owe this? If yes, it is a fixed cost. Rent does not care that Tuesday was slow.

Variable Costs: What Each Sale Costs You

Variable costs are the opposite. They rise and fall with every single thing you sell, because they are consumed by the act of selling it.

For that same shop, variable costs are things like:

• The ingredients or stock that go into each item sold
• The packaging — the box, the bag, the cup, the label
• Card or payment fees charged per transaction
• The extra power or gas burned making one more plate
• Any per-sale commission you pay

Sell one more, you pay these one more time. Sell nothing, you pay them not at all. That is the whole distinction: fixed costs are the cost of being open; variable costs are the cost of each sale. Getting your costs sorted into these two piles honestly is most of the work. The rest is arithmetic.

Contribution Margin: What Each Sale Leaves Behind

Here is the idea that ties it together. When you make a sale, the price comes in, the variable cost of that one item goes straight back out, and what is left over is called the contribution margin — because it is the money that one sale contributes toward paying off your fixed costs.

The formula is plain:

Contribution margin per unit = selling price − variable cost per unit

Say you run a small kitchen and sell a plate of jollof rice for ₦2,500. The variable cost of that plate — rice, protein, packaging, gas, the card fee — comes to ₦1,500. Then:

₦2,500 − ₦1,500 = ₦1,000 contribution margin per plate.

Every plate you sell drops ₦1,000 into a bucket. That bucket exists to pay off your fixed costs for the month. Until the bucket is full, you are not in profit — you are still paying for the privilege of being open. Once it is full, every ₦1,000 after that is yours. (The figures here are in naira, but the logic holds in any currency — a contribution margin is a contribution margin in ₦, $, £ or €.)

Break-Even in Units: How Many You Must Sell

Now the line on the floor becomes a real number. If each plate contributes ₦1,000 toward fixed costs, and your fixed costs for the month are a known figure, then break-even is just asking: how many ₦1,000 contributions does it take to fill the bucket?

Break-even units = fixed costs ÷ contribution margin per unit

Say your kitchen's monthly fixed costs — rent, two salaries, software, base utilities — add up to ₦600,000. Each plate contributes ₦1,000. Then:

₦600,000 ÷ ₦1,000 = 600 plates.

You must sell 600 plates a month — roughly 20 a day — before you make one naira of profit. Plate number 601 is where your money finally starts. Every plate before it was paying the rent.

This is the number almost no operator carries in their head, and it changes how a day feels. Now "we did 18 plates today" is not a vague feeling — it is a fact that says today, we came up short of our line and went slightly backwards, no matter how busy the kitchen looked.

Break-Even in Money: The Revenue Line

Units are perfect when you sell one main thing. But a provisions shop sells hundreds of different items, so counting "units" makes no sense. For those businesses, you work in money instead — break-even revenue.

To get there you need one ratio: your contribution margin ratio, which is just your contribution margin expressed as a share of price.

Contribution margin ratio = contribution margin ÷ selling price

In the jollof example: ₦1,000 ÷ ₦2,500 = 0.4, or 40%. Meaning 40 kobo of every naira that comes in is contribution; the other 60 went straight back out as variable cost. Then:

Break-even revenue = fixed costs ÷ contribution margin ratio

₦600,000 ÷ 0.4 = ₦1,500,000.

So this business breaks even at ₦1.5 million in sales a month. For a mixed shop, you would use your average margin across everything you sell, but the shape is identical: total fixed costs, divided by the share of each sale that survives as contribution.

Why a "Busy" Day Below Break-Even Still Loses Money

This is the part that catches good operators out, so it is worth sitting with.

Imagine a packed Saturday at the kitchen — 18 plates, music going, everyone moving fast. It feels like the best day of the week. But break-even is 20 plates a day. At 18, the bucket took in ₦18,000 of contribution against a daily fixed-cost share of ₦20,000. You ended the day ₦2,000 behind, on the day that felt like a win.

Busyness is not profit. A day can be full of motion, full of sales, full of tired satisfaction, and still sit below the line. The till total tells you how much came in. Only break-even tells you whether it was enough. Without the line, you genuinely cannot tell a good day from a bad one — and that is the whole trap.

The Margin of Safety: How Much Room You Have

Once you know your break-even, one quick extra number is worth grabbing: your margin of safety. It is simply how far above the line you are currently selling — the cushion between your real sales and the break-even point.

If you break even at 600 plates and you actually sell 750, your margin of safety is 150 plates, or 25%. That is how much sales could fall before you start losing money. A thin margin of safety means a slow week tips you into the red fast. A fat one means you can absorb a bad patch. It turns "are we okay?" into a number you can watch.

How Raising Price and Cutting Cost Each Move the Line

Break-even is not a fixed wall — it moves the moment your prices or costs move. Understanding how is what lets you steer instead of react.

Raise the price. Lift the jollof plate from ₦2,500 to ₦2,800, with variable cost unchanged at ₦1,500. Now contribution is ₦1,300 per plate. Break-even drops to ₦600,000 ÷ ₦1,300 = 462 plates — down from 600. A ₦300 price rise cut 138 plates off the work you must do every month before you earn. Price moves the line hard, because it lifts every single contribution.

Let cost creep in. Now the quieter, more dangerous direction. A supplier raises your protein, packaging ticks up, the card fee rises — and variable cost drifts from ₦1,500 to ₦1,700 while your price sits still. Contribution falls to ₦800. Break-even climbs to ₦600,000 ÷ ₦800 = 750 plates. Nobody decided this. No memo went out. But you now have to sell 150 more plates a month for the same nothing — purely because costs crept and the price didn't follow. This is how a shop that was fine in January is quietly underwater by June.

The takeaway: break-even is only ever as current as the two numbers underneath it. The day your true cost per item changes and you don't notice, your break-even line has already moved — you just haven't seen it yet.

Where the Two Numbers Already Live

Break-even maths is not hard. The hard part is the two inputs: your true cost per unit (which sets your contribution margin) and your real fixed costs. Most operators don't compute break-even because chasing those two numbers by hand — recalculating cost every time a supplier price moves, and totting up every fixed cost from scattered receipts — is exactly the work nobody has time for.

This is where Eleo helps, honestly. Eleo already works out your true cost per unit and contribution margin through its product costing — counting the materials, packaging, labour, and overhead that go into each thing you sell, and updating on its own when a supplier price changes. And because Eleo keeps real, double-entry books, your fixed and overhead costs — rent, salaries, subscriptions — are already tracked and totalled in the same place.

So the two numbers break-even needs are not a mystery you have to dig for. They are already in Eleo, side by side. The break-even calculation is then a single step away — fixed costs ÷ contribution margin — done with real figures instead of a guess, the same way it should have been all along.

One Thing to Try This Week

You do not need to model your whole business. Take your single biggest seller. Write down its price, subtract its variable cost, and you have its contribution margin. Then add up your fixed costs for the month — rent, wages, software, base bills. Divide one by the other.

That number is how many you must sell before you earn a thing. Compare it to what you actually sell. If you clear it comfortably, you have proof, not a hunch. If you don't — you have just found the line you've been crossing back and forth over blind, and you found it before it found you. Every pricing decision, every discount, every "should I push this product" gets easier once you can see exactly where zero is.