How are these numbers calculated?

Big Games

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

Week of 3/4100.0*Chance in playoffs100.0*Average seed
Icemen 3 Rebels 1 +21.2
+0.2
Rebels 3 Gunners 8 +15.3
+0.2
Bench Minors 0 Shockers 5 +0.9
+0.1
Week of 3/11100.0*Chance in playoffs100.0*Average seed
Killer Bees 0 Icemen 3 -30.9
-0.4
Shockers 5 Rebels 3 +14.5
+0.1
Gunners 5 Killer Bees 3 -13.7
-0.2
Bench Minors 3 Pylons 4 +0.3
Week of 3/18100.0*Chance in playoffs100.0*Average seed
Killer Bees 1 Shockers 5 Out
-0.2
Games Above .500
Chance Will Make Playoffs