Methodology

How we measure: Condition premium

Every figure in a Closo data block names its window and its source. This page says how each one is calculated and when we publish it. When the sample is too small, we say so instead of showing a number.

Method last revised Nov 1, 2026.

Condition premium

How much more does new with tags sell for than pre-owned?

What the figure is
A percentage: how much higher the new-with-tags median is than the pre-owned median.
What it covers
One brand and one product type.
Time window
Sales from the last 90 days.
When we publish it
Published when each condition has at least 30 sales in the window.
Source
Sold listings on Poshmark collected by Closo.
How it is calculated
(Median new-with-tags price minus median pre-owned price) divided by median pre-owned price.

Prices on hub and lot pages are explained in How we price. Every other method is on How we measure. Past resale results do not promise future ones; prices and demand change.