Incident Record: Pack Size Comparison
Two packages of the same product are being held simultaneously while a calculation is performed that the packaging did not invite.
Incident Record: Pack Size Comparison A Documented Event
She picks up the larger package first.
It is on sale. The sale is a percentage off a price that she does not immediately remember from her last visit. She turns the package over. The weight is printed in a small font. She replaces the package on the shelf and picks up the smaller one.
The smaller one is not on sale.
She holds both.
The first case of pack size comparison changes one small decision without being discussed. The decision is whether to trust the per-unit price that her phone calculator will compute in the next twelve seconds, or whether to purchase the item she came in for and continue with the rest of the list. She opens the calculator.
Someone holds two package sizes side by side and calculates which one is actually cheaper. The calculation takes eleven seconds. The result is counterintuitive. The larger package, which is on sale, is more expensive per unit than the smaller package, which is not on sale. The sale has not created a better deal. The sale has created the appearance of a better deal for a person who has not performed this specific calculation.
She has performed it.
After repetition, other people begin adjusting their behavior around pack size comparison. A person who shops with her has learned to budget an additional three to eight minutes per aisle. The time is not resented. It is accepted as part of an era in which the packaging no longer communicates what it appears to communicate.
The purchase is ordinary, yet each price now feels like evidence in a private economic investigation.
Every remembered old price remains legally active as a comparison point until the buyer stops mentioning it. She has not stopped mentioning it. The 400-gram pasta from eight months ago at a specific price continues to serve as the reference point for every subsequent pasta purchase.
Eventually pack size comparison acquires an unwritten enforcement system that everyone denies creating. The aisle takes longer. The calculation is performed. The cheaper option is selected. The saving is small enough that naming it would require context about why it matters, and the context is available but not offered.
She places the smaller package in the cart.
The larger one goes back on the shelf, sale sticker facing outward.
The investigation remains open. The next aisle begins.