Last week, it was reported that the ACC's revenue for the 2014-15 fiscal year was $403 million. That was up a whopping $100 million from the 2013-14 fiscal year. A big chunk of the increase came from the Maryland exit fee paid to the conference ($31 million) and the College Football Playoff.
As a member, Pitt did quite well for itself. The Panthers already saw a big increase upon joining the ACC and reportedly earned $18.9 million in 2013-14. I haven't yet seen an exact number for the most recent fiscal year, but the Panthers fell somewhere in between Syracuse (at the bottom) with about $24 million and Florida State, who made the most, at $27.