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 +0.1
Rock 10 Wings 9 Out
+0.1
Swarm 10 Bandits 9 +0.1
+0.1
Week of 4/19100.0*Chance in playoffs100.0*Average seed
Swarm 12 Mammoth 18 -0.4
Rush 10 Stealth 5 +0.1
Week of 4/26100.0*Chance in playoffs100.0*Average seed
Swarm 6 Rock 8 -0.3
Stealth 8 Roughnecks 14 +0.2
Games Above .500
Chance Will Make Playoffs