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 -7.0
-0.3
Stealth 9 Knighthawks 13 +1.6
+0.1
Swarm 6 Roughnecks 10 -0.4
Week of 4/25100.0*Chance in playoffs100.0*Average seed
Knighthawks 14 Black Wolves 6 -5.3
-0.3
Black Wolves 9 Bandits 20 Out
-0.3
Bandits 17 Stealth 9 +2.9
+0.1
Swarm 12 Rush 16 +0.8
+0.1
Week of 5/1100.0*Chance in playoffs100.0*Average seed
Black Wolves 7 Rock 10 -0.2
Games Above .500
Chance Will Make Playoffs