How are these numbers calculated?

Big Games

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

Week of 4/12100.0*Average seed
Roughnecks 11 Rush 15 -0.2
Knighthawks 10 Stealth 7 -0.1
Week of 4/19100.0*Average seed
Rush 13 Roughnecks 14 +0.1
Knighthawks 8 Bandits 4 -0.0
Week of 4/26None
Games Above .500
Chance Will Make Playoffs