How are these numbers calculated?

Big Games

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

Friday, 3/20100.0*Chance in playoffs100.0*Relegated100.0*Average seed
GIA 0 ROC 1 Out
+17.2
-0.5
SK 1 CW 0 +0.4
EL 0 GMB 1 +0.2
-0.3
+0.1
MYM 0 H2K 1 -5.5
+0.1
Thursday, 3/26100.0*Chance in playoffs100.0*Relegated100.0*Average seed
GIA 0 EL 1 +15.7
-0.3
SK 1 MYM 0 -3.8
+0.0
Friday, 3/27100.0*Chance in playoffs100.0*Relegated100.0*Average seed
CW 0 GIA 1 -35.9
+0.4
MYM 1 ROC 0 +30.4
-0.3
Games Above .500
Chance Will Make Playoffs