RPG Maker 2000 - Trying to make Status Multipiers

[Maxim]

Status ailments in RPG Maker 2000 are usually a breeze to make as most of us know. Although I'm having trouble making Status Multipliers during battles. The idea is that when you cast a spell or whatever on one of your party members, it'll double a part of the your status.

I thought you could do it with the magic menu, but it seems more complicated than I thought it might be (switches, variables) since the magic menu only allows to increase a certain amount of math. Any advice how I might make a status upper with RPG Maker 2000?

I'd highly appreciate it if anyone can help. Then you'd be awesome and the master of the universe.