Daily Field Note · November 2, 2026
Count Units Before You Reorder
[!quote] Field Note Before you reorder a bestseller, count how many actually left the shelf.
[!summary] The Reader Promise Check how many items sold at each price before you use a strong sales week to order more stock.
The Field Note
Suppose your shop sold 20 mugs at $10 last week and 20 at $11 this week. Sales rose from $200 to $220. You still need the same shelf space for the next 20 mugs.
The U.S. Bureau of Economic Analysis reported a similar gap in September. Consumer spending rose 0.5% in dollars. Once the agency adjusted for prices, the increase was less than 0.1%. That national figure cannot tell you what sold in your shop.
A discount can complicate the picture in the other direction. In an October interview, Wharton marketing professor Peter Fader discussed how Black Friday discounts could shape holiday sales. If mugs sell faster during a promotion, check what happened when the regular price came back.
[!example] Try this Pick one item you plan to reorder. Pull two weeks of receipts. For each week, count units sold at full price and on sale. Mark any days the shelf was empty. Use those counts when you set the next order.
Mental Model Lens
[!tip] Thinking Tool Mental model: The Availability Bias
Useful idea: An event that comes easily to mind can feel more common than it is. A line out the door on Saturday can color your memory of the whole week.
Use today: Look up sales on the quiet days as well as the busy one.
Use It Today
[!question] For Students Take two grocery receipts. Find an item you bought both times. How much of the difference came from its price, and how much came from the quantity?
[!question] For Managers And Founders Which product brings in more dollars this week? Check its units, discounts and days in stock before you place the next order.
[!question] For Educators And Advisors Give a class two shops with the same revenue. Have students choose prices and quantities for each shop. What would they need to know to restock either one?
Useful Copy
Signal Text
[!abstract] Social Copy Twenty mugs at $11 bring in more money than twenty at $10. Count the mugs before you buy a bigger shelf.
Vantage Circle’s Lens
[!sponsor] Sponsor Field Note Explore the AIRe Framework (created by Vantage Circle) to be sure your employees feel recognized and rewarded for their valuable efforts.
Sources
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