How are these numbers calculated?

Big Games

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

Wednesday100.0*Chance in playoffs100.0*Brabham100.0*Average seed
REA 3 WHL 0 -0.6
-0.4
CHI 4 CIN 1 +0.2
FLA 0 GWT 2 +0.2
TOL 1 KAL 6 -0.1
Friday100.0*Chance in playoffs100.0*Brabham100.0*Average seed
TRE 1 WHL 4 In
+0.3
CHI 4 KAL 2 -0.5
+0.0
GRN 2 SC 3 -0.4
-0.1
ELM 3 REA 2 (ot)-0.4
-0.0
FLA 5 GWT 3 -0.1
Saturday100.0*Chance in playoffs100.0*Brabham100.0*Average seed
LV 4 UTA 3 -0.1
LV 5 STK 2 -0.1
TOL 2 KAL 3 -0.2
FLA 5 GWT 2 -0.1
SC 5 GRN 2 -0.1
WHL 4 ELM 3 (so)+0.0
Points
Chance Will Make Playoffs