first off this is the buy/sell form section so wrong area. also if you dont know your exact numbers then  crypto isnt for you. electricity is cheap isnt a firm # which you need to know so you dont even end up spending money on power. things like psu efficency come into play as well as if a coin will even be profitable in the future. difficulty rises with any coin constantly and as such profits for mining ALWAYS go down eventually. short and simple of it is dont do it if your idea is that your going to get good enough advice from a chat form. need todo alot more resarch and understand at the end of the day crypto anything is gambling