10% of the initial fan base or 10% of the remaining? So 50% or 65%? Not sure either is accurate to tell you the truth. Too high.
Mullen might have lost a precious few after 2009, but anyone who jumped ship on him at that point was unlikely to be satisfied with anything reasonable. I can't see anyone bailing after 2010 and the Gator Bowl win. In 2011 though, with the losses to Auburn and South Carolina, no showing for UGA and Arkansas, giving up basically against LSU, and being dominated physically against Bama, I think that was the first year a significant number of people started to lose faith. Call it 10% with another 10% on the fence.
Last year's 7-0 start might have been in some part due to a weak schedule, but most realistic State fans know that we would have found a way to lose one or two of those in the past. The end of the season was a massive failure though. The only thing that saved us from total disaster was Arkansas, and that was only because they were in the midst of a full on implosion worse than ours. So those who were on the fence after 2011 crossed over, and another 10% or so took their place.
This year has done nothing to convince the fence riders to hang with Dan, but nor has it been bad enough to grow that number a lot. Maybe a few but not a lot.
So maybe a fif of our fan base is done with Dan, and another 10% wouldn't fight it if we tried to get rid of him. The rest, I think, are supportive, but in my opinion the next month is very important for Dan Mullen's long term future at Mississippi State.