How are these numbers calculated?

Big Games

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

Friday100.0*Chance in playoffs100.0*Average seed
Moose Jaw 5 Columbus 3 +20.2
+1.0
Moose Jaw 1 Erie 2 -4.5
-0.6
New York 0 Columbus 1 -0.5
+0.0
Saturday100.0*Chance in playoffs100.0*Average seed
Chicago 0 Orange County 1 +0.1
Columbus 1 Denver 0 +0.0
Sunday100.0*Chance in playoffs100.0*Average seed
Orange County 4 Moose Jaw 0 Out
-0.2
Chicago 1 New York 0 +0.0
Points
Chance Will Make Playoffs