...I did a signature campaign, and I saw $450,000. For that campaign and on the list we are not up to 500 participants. Will that $450,000 be shared among the 500 participants or token worth $450,000 or what?
From what I know, it's not how many participants but the stakes where the budget for that bounty is calculated. For example, for signature campaign there's 20% allocated budget and then add all the stakes (not participants) then multiply that to how many stakes you have, like this
450,000 X 0.20 = 90,000 / 750 (total stakes) = 120 x 50(stakes you have) = $6000 is your reward
How to compute how many stakes you have? check how many stakes per week for your level like for example you're legendary and have 5 stakes per week and bounty run for 10weeks so it's 5x10=50 stakes