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 -21.7
-1.1
New York 0 Columbus 1 +21.6
+1.1
Moose Jaw 1 Erie 2 +0.8
Saturday100.0*Chance in playoffs100.0*Average seed
Columbus 1 Denver 0 +37.2
+1.2
Los Angeles 1 Denver 0 -10.1
-0.1
Erie 1 Los Angeles 0 (ot)+5.3
+0.1
Chicago 0 Orange County 1 +4.9
+0.1
Sunday100.0*Chance in playoffs100.0*Average seed
Orange County 4 Moose Jaw 0 +24.6
+0.3
Chicago 1 New York 0 +3.6
+0.0
Points
Chance Will Make Playoffs