How are these numbers calculated?

Big Games

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

Week of 4/6100.0*Chance in playoffs100.0*Average seed
Knighthawks 14 Wings 7 +5.8
+0.7
Rush 7 Mammoth 9 -3.7
Rock 10 Knighthawks 9 -2.9
-0.7
Wings 15 Swarm 13 -1.6
+0.2
Swarm 21 Bandits 7 -1.5
-0.0
Week of 4/13100.0*Chance in playoffs100.0*Average seed
Roughnecks 14 Knighthawks 15 +8.5
+1.0
Rush 14 Knighthawks 10 -3.3
-1.2
Wings 10 Rock 9 -2.6
-0.1
Stealth 10 Bandits 15 +2.3
-0.1
Mammoth 12 Swarm 17 +1.7
-0.1
Week of 4/20100.0*Chance in playoffs100.0*Average seed
Swarm 14 Mammoth 16 -10.8
+0.3
Bandits 9 Knighthawks 10 In
+1.5
Stealth 17 Wings 13 In
Rush 11 Roughnecks 12 -0.5
Games Above .500
Chance Will Make Playoffs