How are these numbers calculated?

Big Games

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

Week of 4/15100.0*Chance in playoffs100.0*Average seed
Stealth 13 Roughnecks 12 -12.2
-0.4
Knighthawks 11 Swarm 17 -5.4
+0.1
Swarm 16 Black Wolves 9 -4.0
Bandits 14 Rock 8 +2.6
+0.0
Rock 12 Bandits 9 -2.1
Week of 4/23100.0*Chance in playoffs100.0*Average seed
Black Wolves 21 Swarm 11 +12.8
+0.3
Knighthawks 13 Bandits 15 +8.3
+0.2
Stealth 14 Rush 12 -0.1
Mammoth 10 Rock 5 +0.1
+0.1
Week of 4/29100.0*Chance in playoffs100.0*Average seed
Roughnecks 18 Rock 17 In
+0.4
Swarm 14 Stealth 6 -12.0
-0.2
Knighthawks 9 Rush 13 +6.4
+0.1
Mammoth 11 Stealth 10 +0.0
Games Above .500
Chance Will Make Playoffs