Idk maybe hit up
@nik87 he's the only one left but in simple English it says Shanks got his bounty because of
a)His Crew
b)His Extremely Famous Commanders
c)Him being Yonko for 6 years
d)His Territory
e)Him being leader of Red Hair Pirates
I am sure strength plays a factor, he is #2 to Mihawk after all but how much Idk. Its worth mentioning pre Yonko Bounty from Shanks was 1 billion and that was from false hype of village destruction and all the other shit.