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
Swarm 6 Roughnecks 10 -22.3
-0.7
Stealth 9 Knighthawks 13 +10.0
+0.2
Rock 15 Black Wolves 12 +2.4
+0.1
Mammoth 11 Knighthawks 10 +0.1
Week of 4/25100.0*Chance in playoffs100.0*Average seed
Bandits 17 Stealth 9 +5.9
+0.2
Swarm 12 Rush 16 Out
-0.5
Knighthawks 14 Black Wolves 6 +0.4
+0.2
Black Wolves 9 Bandits 20 +0.2
Week of 5/1100.0*Chance in playoffs100.0*Average seed
Stealth 13 Roughnecks 14 +0.3
Swarm 13 Knighthawks 12 +0.2
Black Wolves 7 Rock 10 +0.1
Games Above .500
Chance Will Make Playoffs