Chone projections fantasy league type?

[Trainer of Dolphins]

At the bottom of player page with projections it says fantasy valuation and then has league type 20th, 50th, 80th

what do these numbers mean? It seems to be something to do with league size, but wanted to know or at least reassure myself.

Thanks


(I know how to compute to my leagues salary cap numbers from $260 values, but don't know what the three number divisions mean.)

[Trainer of Dolphins]

also what do people think of these projections? Are they any good? too bold? too conservative?