Just racked apple cider to secondary. Does this seem right? My OG was 1.079@78F.
  
My FG was 1.000@64F.

Fermented for 2.5 weeks between that range of temperatures. I plugged it in to an online calculator, and it says I reached theoretical maximum ABV. That seems a little fishy to me, not sure why. I guess if I didn't mix well enough at first the OG would be inflated.
  
  
Secondary question: Is it normal to see an increase in activity (airlock wise) after racking to secondary? It's my first time doing 2-stage.