Call the value conain in an Edit Box in a personal Ribbon and use it in macro

[cpmsimoes]

I've built a personal tab in the ribbon, which contains an edit box to do basic operations (+,-,x,/). The objective, is to gain time, instead of the classic method, copy a value and then paste special + multiply, add etc
The issue is that i cannot "connect" the editbox with my macro, can you please help?

Thanks a lot
cpmsimoes