EDIT: whewt! First Event System for VX (on RMRK, anyways)!!
I'm starting making a game in VX, and I decided I wanted a banking system.
The one I'm including is a direct copy from my game, so it uses variable 1. If you want to use this in your game, either be sure variable one is open, or go through and change the event for your own devices.
If you use this in your game, credit would be nice, but not required.
Enjoy!
EDIT: Screens for Everyone!!
EDIT2: Added an Input number style of banking.