It is a little funky. So, the four first round byes got $8 million each without winning a CFP game. $4 million for making it and $4million for second round games.
If my old West Texas arithmetic is correct:
B1G got $16 million for four teams making the CFP (Oregon, Penn State, Ohio State, Indiana). $12 million for three teams playing in round two. (Oregon, Penn Stat and Ohio State) $12 million for Two teams making the semis (Penn State, Ohio State) and $6 million for Ohio State making the finals. B1G total of $46 million/18 = $2.55 million. Adds up.
SEC - $8+$8+$6+$0=$22 million Have no idea how they distributed it.
ACC - $8+$0+$0+$0=$8 million/2= $4 million each. Adds up.
Big 12 - $4+$4+$0+$0=$8 million/16= $500,000 each. Adds up
MWC - $4+$4+$0+$0=$8 million No idea.