What should the cut be for a marquez vs pac 4

My question is simple. Since Pac and Marquez have fought three times tooth and nail. If they fought a forth time, what should the split be? Should Manny give Marquez a 50/50 split and if so. Why or Why not? All of Pacs recents fights hes been giving these guys like 5 million and he takes the bigger cut just like Mayweather does. Its great for the other guy because it there biggest payday but in the case of a Marquez fight again. Do you think he should be compensated for not only being an ATG but for the last three fights as well. I dont understand why Marquez needs to fights this tune-up and then Rios to get another shot at Manny. They have unfinished business and the Boxing fans want it settled once and for all. 50/50 purse split weight that comfortable for both and stop trying to wait for Marquez to get old or shop worn because he doesnt need to prove anything else in this sport to deserve a shot at PAC. Is this a duck or protective custody on ARUM's part?