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*Average seed
Rock 12 Bandits 9 -0.4
Bandits 14 Rock 8 +0.3
Swarm 16 Black Wolves 9 +0.1
Week of 4/23100.0*Average seed
Knighthawks 13 Bandits 15 +0.5
Stealth 14 Rush 12 +0.2
Mammoth 10 Rock 5 -0.2
Black Wolves 21 Swarm 11 -0.1
Week of 4/29100.0*Average seed
Bandits 12 Black Wolves 7 +1.1
Mammoth 11 Stealth 10 -0.2
Knighthawks 9 Rush 13 -0.1
Games Above .500
Chance Will Make Playoffs