A strikethrough price refers to a reference price displayed with a line through it, next to the new selling price, to visually highlight the magnitude of a discount or promotion. Since May 28, 2022, the European Omnibus Directive (transposed into French law) has strictly regulated this practice: the reference price displayed must be the lowest price charged by the seller during the 30 days preceding the discount—a rule intended to prevent false promotions based on a strikethrough price that was artificially inflated just before the promotion.

An item is sold for €40 for 45 days, then its price drops to €32 for 10 days, before temporarily rising to €42 for 5 days just before the launch of a promotion advertised as “-30%, original price €42, sale price €29.40 ”
This practice is non-compliant: the legal reference price must be the lowest price over the last 30 days, which is 32 €, bringing the actual discount to approximately 8 %, far below the advertised -30 %.
Compliance requires tracking the price history of each SKU over a 30-day rolling window and automatically calculating the legal reference price before any promotional activity. Pricing Optimization Software ’s tools natively incorporate this rule to prevent any discrepancies between the disclosed strikethrough price and the actual price history across all sales channels.
As of May 2022, the reference price shown with a strike-through must be the lowest price charged during the 30 days preceding the discount, and not an earlier price chosen at the seller's discretion.
No, a retailer can advertise a promotion without showing a strikethrough price (for example, by listing only the new price or a discount percentage); however, if a strikethrough price is used, the 30-day rule applies.
Yes, the Omnibus Directive also applies to sales periods: the crossed-out reference price must comply with the same rule regarding the lowest price over the previous 30 days.

Markdown is a structural, irreversible discount, not to be confused with a promotion. If poorly managed, it destroys margin through excessive caution or excessive discounting.
Markdowns cost U.S. retailers approximately $300 billion annually, representing nearly 12% of the sector's revenue.

Garder un prix élevé protège la marge unitaire mais ralentit l'écoulement; démarquer vite accélère l'écoulement mais détruit de la marge. Le bon arbitrage se calcule, il ne se devine pas.
Le coût annuel complet de détention d'un stock (capital, entreposage, obsolescence) représente en moyenne 20 à 30 % de sa valeur.

A markdown policy involves two separate decisions:when to trigger each markdown tier, and by how much. Handling them separately, without a common framework, leads to inconsistencies across stores.
30 to 40% of apparel produced globally is sold at a markdown, or never sold (McKinsey).