I have the inital cost of the equipment, the power requirements, and other misc. costs factored in.

I am 100% lost when it comes to predicting future earnings/projections.  I understand that the price of lets say, X11 BTC or Scrypt LTC is going to be variable.  What I am misunderstanding is how to have any projections with a combined difficulty variable.

Does anyone know of spreadsheets/resources/reading material that would help me wrap this around my head.


I appreciate it.

Thank you for your time!~