How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Tuesday100.0*Average seed
Sabres 3 Leafs 2 +0.1
Leafs 3 Sabres 2 -0.0
Wednesday100.0*Average seed
Oilers 1 Knights 4 -0.5
Knights 3 Oilers 7 +0.3
Blues 3 Ducks 0 -0.2
Ducks 2 Blues 3 (ot)-0.2
Leafs 3 Devils 5 +0.1
Devils 4 Leafs 1 +0.1
Thursday100.0*Average seed
Blues 0 Knights 5 +0.3
Knights 0 Blues 2 -0.1
Penguins 2 Leafs 5 -0.1
Leafs 7 Penguins 4 -0.1
Points
Chance Will Make Playoffs