Price markdown
The velocity (rate of sale) of an article, typically for clearance at the end of a season, or to sell off obsolete merchandise at the end of its life.
The timing and level of markdowns in a selling season is critical to maximising return on sales. This is often measured as revenue realization: the proportion of the potential original selling price achieved. For example, a revenue realization of 50% means that only half the potential full-price sales value was achieved by the end of the season. It is also important in minimizing terminal inventory, i.e. the amount of merchandise left when the season is finished.