This tool tracks real on-chain payouts made by public pools. When you refer to these historical payouts, you should take into consideration diminishing returns per marginal vote. If you vote X amount of SEM on a pool, voting 2X amount will not yield you 2x the profit. If 1000SEM gives you 1 SEM return on a pool, voting 2000SEM will not give you a 2 SEM return.
Best way to go is to split your votes between many public pools that have high enough payouts and low total number of votes.
AP - delegate of Animal Pool
|Pool Name||Votes||Payout for 1000 votes||Annual yield||Last Payout|