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
Hawks 11 Pylons 1 -6.4
-0.1
Stars 1 Showers 7 -4.3
-0.1
Stars 2 Gunners 6 -3.1
-0.1
Thrashers 3 Rebels 1 +3.0
+0.1
Shockers 6 Gunners 1 +2.9
+0.1
Knights 6 Showers 4 +1.2
Rebels 2 Bees 4 +0.8
+0.0
Knights 5 Pucks 4 -0.2
Week of 2/2100.0*Chance in playoffs100.0*Average seed
Rebels 3 Icemen 1 Out
-0.1
Showers 3 Pucks 2 -3.5
-0.1
Rebels 1 Fireliners 0 -3.1
-0.0
Week of 2/9None
Games Above .500
Chance Will Make Playoffs