Chapter 22
Which of my stock is not selling?
Not "what has sold zero units" — that question flatters cheap items and hides expensive ones. The real question is how much money is sitting still, and for how long.
A phone case that has not sold in two months is a rounding error. A leather jacket that has not sold in two months is real money asleep on a shelf, and the two look identical on a list sorted by date alone.
Read it by money, not by silence
This report ranks stock by how many days of selling it represents at its own pace — quantity on hand divided by how fast it normally moves. A high number means a lot of stock moving slowly; a low number means it will be gone soon regardless of price. That is a better question than "how long since it last sold", which treats a coat and a keyring the same.
Alongside that number sits how long it has genuinely been since anything sold. Read the two together: stock that has never sold at all is marked as such, plainly, rather than left blank as if the answer were simply missing.
The one thing this report cannot tell you
It does not know about seasons. A winter coat sitting untouched in June is not dead stock, it is out of season, and this report has no way to tell the two apart — that needs comparing against the same weeks last year, which is deliberately not something this system does across a year boundary. Read this report with the calendar in mind, and do not clear a shelf of coats in July on its word alone.