Daedalus rank - potential rewards

Could somebody please explain to me how Daedalus ranking works? It seems to be ranked by the potential rewards value. Where does it get this number from? I try replicating it with the reward calculator on the cardano foundation website but I can’t get them to give the same answer.

I thought pledge had an influence on rewards, but it seems to be ranking some of the lowest pledged pools at the top.


Maybe you will find the answers here: