All the events at Whole Cake Island are directly seen by CP0 agent Stussy and “Big News” Morgans.
1. Cracker got defeated by Luffy and Nami.
2. Katakuri was taken down by Luffy.
3. Tea Party was ruined by blasting wedding cake and smashing Mother Caramel photo by Brook.
4. Brook successfully stole a copy of Big Mom’s Road Poneglyph (But not sure how many of them know this.)
Assuming that 100,000,000 Berries will be the default increase for the events since they’re dealing with a Yonko here’s my estimates:
By default, Zoro could reach 420,000,000 Berries, Franky 190,000,000 Berries, Nico Robin 230,000,000 Berries and Usopp 300,000,000 Berries.
Luffy should have the biggest boost for being one of the mastermind of the commotion at Whole Cake Island, stealing Jinbe from Big Mom, working with the Fire Tank Pirates, working with the Germa 66, defeating one of the Three Sweet Commanders Charlotte Cracker and the strongest Sweet Commander Charlotte Katakuri. His bounty could reach 800,000,000 Berries!!
Sanji also should have a big boost for being the son of Judge Vinsmoke, which will now be public knowledge, for escaping under Germa Kingdom’s custody, for revolting against Big Mom and for taking her daughter. He also made the cake for Big Mom with a secret ingredient. His bounty could reach 350,000,000 Berries.
Brook should have a HUGE boost for stealing a Poneglyph, damaging a Yonkou’s soul weapons and causing Big Mom’s riot. His bounty could reach 300,000,000 Berries.
Jinbe should have a solid bounty increase for betraying Big Mom, joining the StrawHats and reforming the Sun Pirates. His bounty could reach 600,000,000 Berries
Nami could reach 180,000 Berries for controlling King Baum and Zeus, escaping Big Mom, helping defeat one of the Three Sweet Commanders Charlotte Cracker.
Chopper: Maybe a slight bump? The gag must live on! His bounty could reach 200 Berries 😀