How are these numbers calculated?

Big Games

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

Tuesday, 5/8100.0*Chance in playoffs100.0*Average seed
Compton 4 Pixies 0 -13.9
-0.4
Hipsters 0 Nannies 2 +4.0
Cats 0 Crabs 2 -1.1
-0.0
Wednesday, 5/9100.0*Chance in playoffs100.0*Average seed
Pixies 3 Hipsters 0 +23.7
+0.6
Crabs 3 Turtles 1 -17.3
-0.2
Nannies 2 Compton 1 -1.4
-0.1
Thursday, 5/10100.0*Chance in playoffs100.0*Average seed
Bears 0 Crabs 1 (ot)-21.4
-0.2
Nannies 3 Pixies 2 (ot)-6.3
-0.4
Points
Chance Will Make Playoffs