Saw this in Google Analytics today.
I can't recall what they put in place of this percentage before, can anyone else remember? I vaguely recall that it wasn't an accurate mathematical representation of an increase in traffic from 0 to whatever volume. I think it treated the 0 like a 1. So a jump from 0 visits to 1000 visits would read as a 1000% increase. It looks like GA has taken to putting "infinity percent," aka "∞%" when traffic volume jumps from 0.
Is anyone else seeing this? Is this old news? No idea how new/old this is, but I don't recall seeing it last Friday. Thought I'd share!