How are these numbers calculated?

Big Games

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

Week of 4/17100.0*Chance in playoffs100.0*Average seed
Rock 15 Black Wolves 12 -11.6
-0.5
Stealth 9 Knighthawks 13 +1.9
+0.1
Week of 4/25100.0*Chance in playoffs100.0*Average seed
Knighthawks 14 Black Wolves 6 -8.6
-0.5
Black Wolves 9 Bandits 20 Out
-0.4
Bandits 17 Stealth 9 +4.7
+0.1
Swarm 12 Rush 16 +1.6
+0.2
Week of 5/1100.0*Chance in playoffs100.0*Average seed
Black Wolves 7 Rock 10 -0.3
Games Above .500
Chance Will Make Playoffs