Boutique Sell-Through & Reorder Calculator

When should you consider reordering?

There's no universal sell-through percentage that means "reorder" — a swimsuit at 40% in June and a core denim style at 40% in its ninth month are completely different situations. What travels between boutiques isn't a benchmark, it's a set of questions: how fast is it selling, how long will what's left last, can the vendor even replenish it, is the season still open, and did it sell at full price or only on discount?

The one hard constraint is timing. If your remaining stock is projected to run out in less time than your supplier needs to ship a reorder, then waiting to decide is a decision — the style will be out of stock either way. That's why lead time sits in this tool alongside rate of sale.

Why open-to-buy comes after the reorder decision

These two tools answer different questions and they run in order. Sell-through answers should I reorder this? — it's about the product. Open-to-buy answers can I afford to reorder anything right now? — it's about the plan. Work out which styles have earned more money first, then check whether the month has room for them in the Open-to-Buy Calculator. Doing it the other way round just tells you how much you can spend without telling you what deserves it.

For the full method — the formulas, the measurement window, why units sold alone can mislead you, and the reorder framework in detail — read Sell-Through Rate for Boutiques: What It Means & When to Reorder. For the weekly tracking system this calculator sits inside, boutique inventory management covers the spreadsheet and the cadence. And if you're sizing a buy you haven't placed yet, that's the Inventory Buy Planner's job, not this one.