How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 1/26100.0*Chance in playoffs100.0*Average seed
Stars 2 Gunners 6 +5.5
+0.5
Shockers 6 Gunners 1 -5.4
-0.7
Rebels 2 Bees 4 +2.3
+0.1
Hawks 11 Pylons 1 +2.1
+0.1
Stars 1 Showers 7 -1.6
-0.1
Thrashers 3 Rebels 1 +1.4
+0.1
Knights 6 Showers 4 +1.2
Knights 5 Pucks 4 +0.9
-0.1
Shockers 1 Fireliners 0 -0.1
Week of 2/2100.0*Chance in playoffs100.0*Average seed
Showers 3 Pucks 2 -0.8
-0.1
Rebels 1 Fireliners 0 -0.8
Rebels 3 Icemen 1 -0.1
Week of 2/9100.0*Chance in playoffs100.0*Average seed
Gunners 7 Pucks 2 +1.0
Bees 4 Gunners 0 -0.5
Showers 3 Pylons 4 +0.2
Knights 7 Stars 0 -0.1
Games Above .500
Chance Will Make Playoffs