

Most small business store owners can tell you what they sold last month and not what they kept. This page walks you through a 12-point self-check, then shows you how to work out the one number your register never puts in front of you. Free to use, free to print, no account needed.
Money coming in and money kept are two different things, and only one of them shows up on your register. A good Saturday feels like a good Saturday. The queue is out the door, the till is full, and nothing about that day tells you what any of it left you with.
That is the whole problem in one sentence. Your register reports sales all day long and reports margin never. Sales are handed to you; everything else you have to go looking for β across purchase orders, freight bills, markdown tags and the box of broken stock in the back. Nobody puts those in front of you at the end of the month, so they go unmeasured, and the store quietly earns less than you believe it does.
That gap is where busy stores get into trouble. Not through bad selling, and not through laziness. Through a number that was never on the screen. This page closes that gap. By the end of it you will have one figure you can actually work with β what your store really keeps β and a short monthly habit that keeps it in front of you.
These two get used as though they mean the same thing. They do not, and the difference between them is money.
Here is the plain-language rule. Markup is measured against what you paid. Margin is measured against what you charged. Same sale, two different denominators, two different answers.
An item costs you $10. You add 50% and sell it at $15.
Your markup is 50%. Your margin is 33% β because $5 of a $15 sale is a third of it, not half.
Doubling the cost β the old keystone rule β is a 100% markup and a 50% margin.
Why this matters in practice: most owners set prices on markup and then budget on margin. You add 40% at the buying desk and carry a 40% figure in your head when you work out whether the store can cover rent. It cannot β 40% added to cost is only a 28.6% margin. Do that across a whole price list and you have priced the store into a loss without a single bad decision anywhere.
So pick one number and be deliberate about it. If you price on markup, work out what margin it actually produces before you rely on it for anything. If you plan on margin, set your prices from the margin you need and let the markup fall where it falls. What you cannot do is use one at the buying desk and the other at the bank.
The margin on your reports is a headline. It is what your sales would have left you if every item went out at full ticket, arrived free, and none of it ever broke. None of those are true, and the four deductions below are the difference between the margin you quote and the margin you actually have.
Start with your headline margin β sales minus what the goods cost you. Then take off, in order:
Every one of those four is already sitting in your records. None of them require an accountant or a new system β they require somebody to add them up once. That is exactly why they go unmeasured: no report produces them, so nobody sees them.
The gap between headline and real is usually points, not a rounding error, and points are the whole game at retail volumes. A store can be comfortably profitable at the headline number and losing money at the real one, and the owner will not find out for a year. Work yours out for one month and you will know which store you are running.
If your margin looks fine but the bank account doesn't β Retail Cash Flow: Why Your Money Is Sitting on the Shelf
A sale on your shop floor and the same sale online do not leave you with the same money.
Online, something sits between you and the customer on nearly every order: the platform's cut, the payment fee, the packaging, and the postage if you're covering it. Then there are returns, which come back more often online than they do from your floor β and the ones that come back damaged or opened come back as a cost, not as stock.
None of that shows up if you run one blended margin number for the whole business. A blended number can look perfectly healthy while one channel quietly subsidises the other, and you won't know which way round it is.
Work out your real margin separately for each way you sell. Same method as above β sales, minus goods, minus markdowns, minus freight in β but done once per channel, with the online-only costs taken off the online side.
Store only? You can close this.
The dollar you spend on stock does not earn its margin once. It earns it every time it goes out the door and comes back as another item. How many times that happens in a year β turns, to use the term once and then leave it alone β decides how much that dollar is worth to you.
Two stores can run identical margins and end the year in completely different positions. One turned its money four times, the other twice. The second store earned half as much from the same money, and no price rise was ever going to close that gap. This is why margin alone never explains the bank balance.
Working it out roughly is easy: take your cost of goods for the last twelve months and divide it by your average stock at cost. If you spent $268,800 on goods and typically hold about $130,000 on the floor, your money went around about twice.
Then do the only comparison that means anything: your store this year against your store last year. A gift shop, a bike shop and a jewellery store all run healthy businesses at wildly different speeds, so any number you read as a target was measured in somebody else's category. Yours going up is good news. Yours going down is a question worth asking. That is the whole reading.
The practical move is on your floor, not in a spreadsheet. Walk it and mark what has not sold in six months. That is money standing still β and it is the fastest thing on this page to fix.
If the problem is what you're buying, not what you're pricing β How Much Inventory Should You Actually Buy?
Four numbers, written down monthly, in the same place. That is the practice this page is asking you to build.
Number four is where your own pay has to be named out loud. If you draw whatever is left at the end of the month, your pay is invisible to the numbers β and a store that does not pay its owner will always look more profitable than it is. You will price too low, keep the wrong lines and call a bad month a good one. Put yourself in as a set cost, then look at what remains. If nothing remains, that is the finding.
Take the four together and you can see where the money is going: margin problem, speed problem, or overhead problem. Any one of them is fixable. Not knowing which is the expensive part.
Honestly, the first time takes an afternoon β pulling the markdowns, the freight and the damages together is the slow part. Every month after that is about twenty minutes, because you already know where everything lives.
Maple & Co. Β· 1,400 sq ft gift and home Β· owner + 3 part-time Β· ~$480K a year Β· store only
These are this example store's numbers, not a target for yours.
| Line | Amount | As % of sales |
|---|---|---|
| Sales for the year | $480,000 | β |
| Cost of goods sold | $259,200 | 54.0% |
| Gross margin as it looks | $220,800 | 46.0% |
| Less markdowns actually given | β$18,000 | |
| Less damaged and missing stock | β$4,800 | |
| Less freight in | β$9,600 | |
| Real gross margin | $188,400 | 39.2% |
| Rent | $42,000 | 8.75% |
| Payroll (3 part-time, owner not included) | $86,000 | 17.9% |
| Rent + payroll | $128,000 | 26.7% |
| Left after goods, rent and payroll | $60,400 | 12.6% |
Turns: average stock at cost $130,000. Cost of goods including freight $268,800. $268,800 Γ· $130,000 = about 2.1 times a year.
The takeaway is the two gaps, stated plainly. The owner thought the margin was 46%; it was 39.2% β nearly seven points, roughly $32,000 a year. And $60,400 is what remains to cover utilities, insurance, card fees, marketing, supplies, accounting β and to pay the owner. Their money went around the shelf about twice. Doubling that, at the same margin, would change the business more than any price rise they could get away with.
Most store owners can tell you last month's sales to the dollar and can't tell you last month's margin at all. That isn't carelessness. Sales are on the register screen every day. Margin is scattered across your purchase orders, your freight bills, your markdown tags and your damaged-goods pile, and nobody hands it to you at the end of the month. So it goes unmeasured, and the store quietly earns less than the owner believes it does. Working it out once takes an afternoon. Not working it out costs you a little every single week.
Take last month. Sales, minus what the goods cost you, minus markdowns you gave, minus freight you paid, minus anything damaged or missing. That's your real number.
Don't decide what to do about it yet. Just find out how much of your money is standing still.
One line, one number. You now have three of the four numbers on this page.
There isn't one number. A jewellery store and a hardware store both run healthy businesses on very different margins. The comparison that tells you something is your own store this year against your own store last year. That's the number to chase.
Markup is measured against what you paid. Margin is measured against what you charged. Add 50% to a $10 item and sell at $15 β that's a 50% markup but a 33% margin. Pricing on one and budgeting on the other is a common, expensive mistake.
Usually one of four things: your real margin is lower than you think once markdowns and freight are counted, your stock turns too slowly, your rent and payroll take too big a share of sales, or you're not paying yourself. This page checks all four.
Take your cost of goods sold for the last twelve months and divide it by your average stock at cost. The answer is roughly how many times your money went around the shelf. Compare it to your own last year, not to anyone else's store.
Yes. If you're not paid a set amount that the numbers can see, the store looks more profitable than it is, and you'll price too low without realising. Put your pay in as a cost, then look at what's left.
This checklist sharpens your financials. Our full Business Health Assessment measures all 12 dimensions of your store β financial, operational, leadership, technology, growth, and more β and returns a prioritized action plan in about 45 minutes.