According to the Manila Bulletin (h/t Daily Mail's Michael Gadd), Pacquiao is set to make $2.25 million alone from the sponsorships on his trunks, the highest total any boxer has made from the venture.
"The rate for this fight is different from the previous (fights)," said Eric Pineda, Pacquiao's business manager, per Nick Giongco of the Manila Bulletin. "So far, we have six (companies) that will have their logos on Manny's trunks."
That seems like a king's ransom just to get your logo on a boxer's fight garb. Mayweather vs. Pacquiao is set to be the highest-grossing fight of all time, though, so getting that kind of visibility comes with a heavy cost. By comparison, plenty of American companies pay millions to have a commercial air during the Super Bowl.
Either way, Pacquiao will earn himself a couple more million on top of the millions he's already in line to receive from this highly anticipated bout.