markdown rule (IS-R) |

A markdown rule contains planning data relating to a specific period for:

- changes in the sales price of a material in relation to the original price
- percentage share of the total sales quantity

When creating a markdown plan, you can use markdown rules to calculate the planned prices and quantities. A markdown rule consists of several phases (periods):

**Example:**

- Phase 1 (starting situation)

Sales price 100%, planned sales quantity 50%

- Phase 2 (after 60 days)

Price reduced to 75%, planned sales quantity 30%

- Phase 3 (after 90 days)

Price reduced to 50%, planned sales quantity 10%

- Phase 4 (after 120 days)

Price reduced to 30%, planned sales quantity 5%