Why don't order total modules change item prices?

New users sometimes ask, “Why don’t order total modules change item prices?”

Because that’s not how order total modules work. They apply to the total order value, not to any individual product. So they are line items which are added or subtracted after the Sub-Total is computed.

There are ways to reduce individual product prices - you can use Sales or Specials, for example. See Price Reductions for more details.

There are ways to increase individual product prices through attributes.