man, you constantly miss the point which is why it's always a pointless battle talking to you.
Why do you think the fight was in Macau? Because they paid them boatloads of cash to have Pacquiao there. They're making a profit off that alone, the 300k ppv is just bonus to them. They new Algieri wasn't going to be a bigger draw than Brandon Rios. This is exactly the number I predicted when the fight was announced. Arum isn't dumb, which again is why this fight was in Macau.
As to why Pacquiao's numbers are lower than Floyd's, obviously because he got KTFO just two fights ago, his stock took a hit. Floyd is obviously a bigger draw in America, we know all of that.
The point you seem to miss is that the biggest fight in boxing history can only happen between two guys:Floyd and Pacquiao. Which is why there shouldn't be some huge gap in Purses. I'd say 60/40 in Floyd's favor, something along those lines. Because again, the most money Floyd can ever make in his career is against only one guy, Pacquiao, and vice versa.