How are these numbers calculated?

Big Games

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

Week of 4/14100.0*Chance in playoffs100.0*Average seed
Stealth 15 Roughnecks 11 -30.2
-0.9
Rush 12 Black Wolves 13 -6.1
-0.2
Rock 8 Bandits 13 -3.9
-0.1
Swarm 17 Bandits 16 +3.0
+0.1
Mammoth 13 Knighthawks 7 -0.6
-0.0
Week of 4/22100.0*Chance in playoffs100.0*Average seed
Stealth 13 Mammoth 7 -10.2
-0.1
Knighthawks 15 Black Wolves 13 +9.2
+0.1
Rush 15 Rock 10 -3.2
-0.0
Bandits 7 Swarm 20 +0.7
+0.2
Week of 4/28100.0*Chance in playoffs100.0*Average seed
Roughnecks 14 Rush 7 +13.7
+0.1
Black Wolves 16 Stealth 17 +12.5
+0.1
Bandits 15 Rock 19 +11.0
+0.1
Knighthawks 10 Swarm 13 +0.1
Games Above .500
Chance Will Make Playoffs