im pretty new to unity and ive been trying to practice by making small programs to help with dnd, i wanted to make a number tracker where you can enter a number in and it will keep that number and then you can subtract from that number when you press a button, i cant not for a life of me get the subtraction working, ive look for hours on the web and tried countless things and i cant figure it out, i need some help bad
I suggest looking into two post’s that are similar, each one kinda gives multiple points on doing said function you wish to apply 
https://answers.unity.com/answers/1913666/view.html
- Be sure to read all the comments, as some discussions went on for a bit