How fast your stock actually sells — and why the answer changes what you buy

Ask most merchants which product is doing well and they’ll name the one that sells the most units. That’s a fair answer, but it leaves out the number that decides whether the product is actually earning its place: how fast it sells. Two items can each move 30 units a month and be completely different bets. If you keep 30 of the first on the shelf, it clears in four weeks. If you keep 120 of the second, the same 30 sales a month means four months of cash sitting on that shelf, waiting.

That speed has a name — turnover, or how many weeks of supply you’re holding — and it’s the difference between stock that pays you back quickly and stock that quietly ties up the money you need for everything else. The good news is you don’t need an accountant or a new system to see it. You already have both halves of the answer in Clover: how many units each product sold, and how many you have on hand right now.

Why the speed of your stock matters more than the count

Every unit on your shelf is money you already spent and haven’t got back yet. A product that turns quickly gives that money back fast, so you can spend it again on the next order. A product that turns slowly locks the same money in place for weeks or months. You can have a store full of products that all technically sell and still be short on cash, simply because too much of it is parked in stock that moves at a crawl.

Reading turnover also changes how you judge a reorder. "It sold 30 last month, order 30 more" feels safe, but it ignores what’s still on the shelf. If you’re already holding twelve weeks of that item, another case doesn’t help you sell faster — it just deepens the pile. The merchants who stay liquid are the ones who buy against how fast a product moves, not just against how much it sold.

What slow turnover looks like on the floor

You can often feel slow stock before you measure it. The signals are ordinary, which is why they rarely trigger a decision on their own.

• You reorder a product and the previous case isn’t finished yet — the back room has two or three generations of the same item stacked up.
• A shelf looks full and healthy, but the same faces have been in the same spots for months.
• Cash feels tight even though sales are fine, because more of your money than you realise is sitting in slow-moving stock.
• You know your top sellers by heart but couldn’t say which products are the slowest to clear — the speed question simply never gets asked.

How to read your turnover from sales data

You don’t need a turnover ratio or any finance formula. The most useful version for a shop floor is weeks of supply, and it takes two numbers you already have: how many units you have on hand, and how many you sell in a typical week.

1. Pull units sold per product for a recent, representative stretch — four to eight weeks — from your Clover reports or an export, and divide by the number of weeks to get an average weekly sales rate.
2. Take the current on-hand count for each product straight from Clover, and divide it by that weekly rate. The result is roughly how many weeks the shelf will last at today’s pace.
3. Sort your products from most weeks of supply to fewest. The long end of that list — the twelve-, sixteen-, twenty-week items — is where your cash is stuck, even if those products still sell.
4. Set a rough ceiling that fits your store, say six or eight weeks of supply for everyday items, and treat anything well above it as a signal to reorder less or stop until the pile comes down.

The mistakes that keep slow stock hidden

The most common mistake is judging a product by units sold alone and never pairing it with what’s on the shelf. A product selling 30 a month looks identical to another selling 30 a month on a sales report — the difference only appears when you set those sales next to the on-hand count. Skip that step and your fastest and slowest movers look the same.

The second mistake is chasing case-deal discounts without checking speed. A supplier’s "buy more, save more" offer is only a saving if the stock clears before the saving matters; on a slow item, the deal just buys you months of extra supply at a discount you’ll wait a long time to feel. The third is measuring turnover once and never again — speed drifts with seasons and trends, so a product that turned in two weeks in December might be a slow mover by March.

It cuts the other way too. Picture a boutique that sees one accessory holding barely a week of supply and selling out most Saturdays. Read as speed rather than a flat unit count, that’s not a small product — it’s an under-bought one, and the right move is to order deeper, not treat it as a minor line.

Where CornerPilot fits

The reason turnover rarely gets checked isn’t that it’s hard — it’s that lining up recent units sold against the current on-hand count, product by product, is tedious to rebuild by hand every time. CornerPilot connects to your Clover data and lays out units sold per product across recent periods in one place, so the weekly sales rate you need is right there instead of buried in separate reports. You pair that with the on-hand counts Clover already tracks to see which shelves are carrying weeks of supply you don’t need. The sync is scheduled rather than live, which suits this perfectly: turnover is a pace you read over weeks, not a number you refresh by the minute.

The takeaway

How much a product sells tells you only half the story; how fast it sells tells you whether it deserves the cash it’s holding. Weeks of supply is the plain-language version — on-hand units divided by a typical week’s sales — and it turns a flat list of sellers into a ranked list of where your money is stuck. This week, pick one category, work out weeks of supply for each product in it, and find the single item carrying the most. Reorder less of it, or pause it, and put that cash toward something that turns. To see units-per-product laid out across periods, take a look at the features page, or check the pricing.