Calculating epc
I have recently lunched my own site with a few affiliate offers. I am now running campaigns using google ads with actually some good results. Now i am trying to scale up but i have a few questions about epc.
1. Should i calculate the epc on the total clicks generated from the campaign or the total clicks the offer received?
2. In order to be profitable do i need to keep my bidding in google ads below the epc or not ?
3. Is anything else that i need to calculate just make sure that my campaigns are performing well?
I also welcome any other recommendations or advices you may have before i scale up

Thank you in advance
Free Proven Blueprint: http://emailmonetize.com/blueprint/