Tries many time not work (Item Based Discount on Order Screen)

Hello team! I have tries many times as following guideline below but not work with Item Based Discount on Order Screen! Please give me some idea!

The tutorial works… you must have missed something. We need to see what you have done to catch what you missed. Share screenshots please.

yes thanks @Jesse now it working good, but i have trouble with template receipt of discount tag. it not show on the bill. may you give some templates of discount tag !