Markdown: the clearance that protects margin and the one that hides a buying error
Markdown is the price reduction off full price, measured as a percentage of sales. The formula is honest. The total does not tell you what matters: why the discount happened.
The number shows up clean at close. Markdown of 12% on category sales. For the controller, it is a simple line. Too simple.
What it measures well
Markdown captures how much margin was given back in discount. Comparable across categories, stores, seasons. For sizing the total cost of promotion, it is the right indicator.
What it hides
Two 12% discounts can be opposites. One is planned: the promotion that pulls traffic and was budgeted. The other is forced: clearing a buying error or stock that aged on the shelf.
Same markdown, opposite meaning. The first is a marketing investment. The second is a loss confessed late. The total blends the two and calls it “12%”, and leadership celebrates or punishes the wrong number.
It also hides the opposite: markdown that is too low. The chain proud of little discounting is sometimes sitting on dead stock it should have cleared months ago. Full margin on paper, capital trapped in the back room.
The pair that is missing
Markdown alone lies in both directions. The pair that makes it honest is full-price sell-through, how much of the buy sold before any discount.
Read together, they separate planned from forced. High markdown with high full-price sell-through is a promotion that worked. High markdown with low full-price sell-through is a buying error being buried. It is the same reading that separates promotional from base elasticity.
The implementation note
A project that optimizes “reduce markdown” without the pair kills healthy clearance and accumulates dead stock. The model learns to avoid discount, including the discount that clears the error cheaper today than tomorrow.
The criterion has to separate the source. Planned discount you optimize; forced discount you prevent upstream, at the buy. It is the same discipline as DSI by base and by peak.
Take the margin or discount metric that has sat on the CEO’s slide for six months. Does it separate the discount you chose to give from the one you were forced to give? If it is a single number, it is hiding the buying error inside the promotion.
Send me its name and how it is measured today. In one hour I will send back a one-page audit: the measurement quality problem, the pair that should sit alongside, and the size of the work if the gap confirms. If it confirms, the two-week Diagnóstico scopes the rebuild.