Floyd Mayweather signed up to a six fight 30 month deal with Showtime.
In an article Forbes magazine writes:
Mayweather is likely looking at a guarantee of around $200 million for the six-fight deal. Pay-per-view revenues will push that total past $250 million. How much past $250 million depends on the quality and marketability of his opponents, as well as Mayweather staying undefeated.