Bounty

A PKO tournament routes part of every entry fee into bounties instead of the ordinary prize pool, so busting an opponent pays out in cash straight away rather than only through the final payout structure. That changes the maths of a marginal call: a call that loses chip equity on the pot alone can still be worth making if it also buys a real chance at collecting a bounty, and a bounty compounds as its target survives and accumulates the bounties of players they have already knocked out themselves. Because a bounty is a fixed dollar figure and a stack or pot is chips, comparing the two directly needs a conversion first, which is what the site's PKO calculators do.