I make it a little different this example:
As you can see here instead of showing same number (in example case 500) it shows now 250 (for clicking down - lower) and 800 (for clicking up - higher). I will probably change it, in next lecture, because here I just use random numbers, but I think it has some flavor so far. Also I think what Rick show in the video is something called global and local variables cause that’s what are local and globals. Locals works only in area they are and global variables work in the whole project. Could be wrong ofcourse, but just remind me of that! Tell me if I’m wrong or not! 
