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
Mammoth 13 Knighthawks 7 -9.8
-0.5
Rush 12 Black Wolves 13 -3.4
-0.1
Swarm 17 Bandits 16 +1.1
+0.1
Stealth 15 Roughnecks 11 +0.9
-0.1
Rock 8 Bandits 13 -0.8
-0.2
Week of 4/22100.0*Chance in playoffs100.0*Average seed
Knighthawks 15 Black Wolves 13 +5.3
+0.4
Stealth 13 Mammoth 7 -2.2
-0.1
Bandits 7 Swarm 20 -0.3
+0.2
Rush 15 Rock 10 -0.1
Week of 4/28100.0*Chance in playoffs100.0*Average seed
Knighthawks 10 Swarm 13 Out
-0.3
Bandits 15 Rock 19 +0.3
Swarm 8 Knighthawks 9 +0.3
Games Above .500
Chance Will Make Playoffs