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
Rush 12 Black Wolves 13 +15.8
+0.8
Mammoth 13 Knighthawks 7 +2.8
Rock 8 Bandits 13 +1.9
+0.2
Stealth 15 Roughnecks 11 +1.4
+0.1
Swarm 17 Bandits 16 +0.9
+0.1
Week of 4/22100.0*Chance in playoffs100.0*Average seed
Knighthawks 15 Black Wolves 13 -9.7
-0.5
Rush 15 Rock 10 +3.0
+0.2
Stealth 13 Mammoth 7 -0.1
Bandits 7 Swarm 20 -0.1
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
-0.9
Bandits 15 Rock 19 -11.0
-0.3
Knighthawks 10 Swarm 13 +1.9
+0.0
Games Above .500
Chance Will Make Playoffs