ECR weekly rankings: where do the projections come from?

On the ECR weekly rankings for specific roster positions there is a “proj. fpts” column. It does change slightly when you select different experts. So, I figured the experts were required to produce their own projections as well. However, if you click view an experts rankings, they don’t show their projected points. It only shows their rankings.

My question is where do the projected points come from on these rankings? Generated from the experts I select or some other methodology? Thanks!