It's all public information, except Vandy because they are a private school. Here's one of many sources you can find online. https://arkansas.rivals.com/news/the-most-profitable-football-schools-in-the-sec Here's another from 2019: https://graphics.wsj.com/table/NCAA_2019 We were not in the top 30. Memorabilia is a drop in the bucket. As UK is usually near the top in merch sales, though I'm having trouble finding data since COVID. https://worthly.com/sports/ncaa-schools-make-merchandise/ The revenue differenttial is mostly from ticket sales, KFund required donations for season tix/parking/tailgating etc and all the other stadium revenue generated on game days. There is no comparison. UGA/Bama are Reds Sox/Yankees and we are the Cincinnati Reds.Ultimately ESPN will sweeten the deal and SEC will go to 9 games, or quality wins or lack of will start hurting the conference when playoffs are discussed. A 10-2 record with 7 quality wins isn't the same as 10-2 with 8 quality wins. Play 8 SEC games and winning all of them aren't 8 quality wins, could be if you played the right 8.
I don't know where you numbers come from, I guess memobellia sales have explode for UGA, because we get the same from TV contract, UK has 8 home games and years UGA is home team in Jax it has 6 actual games in Athens.