3. ICO Bounty budget (% of ICO tokens for the whole bounty program): sometime the percentage of bounty allocation is so poor that you recieve a penny for your months of hardwork. bounty hunter is not a difficult job but you have to invest a good amount of time to fulfill the steps asked by manager. simply the projects runs for few weeks to months hence, this time cost is your expense to get the return of bounty rewards.
It depends on the quality of the project, I've seen some bounties with low allocation of 0.01% from the token or coin max supply but the tokens end up having high value, an example is PoolZ which gives out 25,000 pieces of tokens and now one token worths 14$, that's 350,000$