How are these numbers calculated?

Big Games

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

FridayNone
Saturday100.0*Chance in playoffs100.0*Average seed
QUE 5 MTL 1 In
+0.5
POR 4 EDM 3 -2.5
-0.3
Sunday100.0*Chance in playoffs100.0*Average seed
QUE 3 WIN 2 +0.5
SAS 8 POR 5 +0.1
Games Above .500
Chance Will Make Playoffs