You put in Pac-rios.... but how about Pac's recent one against Timothy Bradley II in April, 2014? It did 750-800 K, if only it had a better undercard. Also note that Pacquiao was knocked out 2 fights earlier... still manages to pull 750-800K with Bradley II
There's no upside pay which isn't a big deal becuase he's guaranteed $32 million. Floyd only gets PPV money if the buys exceed a certain threshold which is somewhere over a million buys. Floyd could sell 5 PPVs in his next fight and still make $32million. So Floyd isn't failing......it's SHO that is failing based on over paying and over estimating the drawing power of Mayweather when they moved to steal Floyd away from HBO.