How much did Floyd Mayweather get for participating in Wrestlemania XXIV?

Months before Wrestlemania XXIV, the WWE announced regularly that Floyd Mayweather would be given $20 million dollars to have a boxing match with Paul "the Big Show" Wight. The company mentioned this so often that quite a few news sources reported the $20 million dollar figure as fact. But more than likely the $20 million dollar payout was apart of the wrestling storyline, especially since the WWE reported that Wrestlemania XXIV generated around $23.8 million in total revenue.

There are sources that are reporting that Mayweather more than likely received around $2 million for his Wrestlemania appearance, plus a percentage of the pay-per-view buys.