It would be a bit better if instead of giving a percentage. It gives the new total. So instead of 50% bonus. It would say that it came from 100 - 150. Right now you just have to guess the amounts or do the math. Either of them are pretty annoying after a while.
An auto fight would be amazing. I am past level 100 hundred but this will take forever if i have to click over, and over again just to fight things i will automatically win.
Maybe having it so the amount of gold you earn from your mine will eventually switch over to the O's and N's instead of just numbers would be a good idea. It is really annoying trying to see how much more you are making after awhile.