How are these numbers calculated?

Big Games

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

Week of 4/12100.0*Chance in playoffs100.0*Average seed
Knighthawks 10 Stealth 7 +3.5
+0.1
Rock 10 Wings 9 +1.9
-0.0
Rock 13 Bandits 9 -0.9
-0.1
Swarm 10 Bandits 9 -0.1
Week of 4/19100.0*Chance in playoffs100.0*Average seed
Swarm 12 Mammoth 18 +15.1
+0.4
Stealth 11 Wings 15 -9.6
Week of 4/26100.0*Chance in playoffs100.0*Average seed
Wings 12 Mammoth 13 In
+0.6
Games Above .500
Chance Will Make Playoffs