Affiliate Marketing Secrets

Robotics or Electronics and Telecommunication engg…..also mention job opportunities and salaries if i do it from a mumbai university affiliated college

I don’t get how Boxers get paid 15M+ for fights and top MMA fighters never break 500k. At the last UFC event according to this link:
http://mmajunkie.com/news/21951/ufc-125-salaries-thiago-silva-and-frankie-edgar-top-872k-fighter-payroll.mma
The main event fighter (Who is a Belt holder) only made 102k, and that’s including his win bonus too.
At first I thought maybe way more people go to Boxing live events and they fill 100k stadiums, but then I figured, the last UFC with GSP headlining had 23k and they still didn’t come close to a boxing payroll. Then I logically thought way more people must watch Boxing PPV’s, however at the GSP vs Koshcheck II post-fight press conference Dana White mention how the UFC is “In half a billion homes worldwide”.
So what is it exactly that allows Boxers to be paid so much more? I can’t imagine, even if it’s more popular than the UFC that it can be THAT much popular. For it to make sense in that way, they would have to be in 5 billion homes worldwide and selling out 800k stadiums, it’s just not logical.
So anyone know the secret to this advance boxing marketing?