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*Average seed
Rock 15 Black Wolves 12 +0.2
Mammoth 11 Knighthawks 10 +0.2
Stealth 9 Knighthawks 13 -0.1
Week of 4/25100.0*Average seed
Knighthawks 14 Black Wolves 6 -0.1
Swarm 12 Rush 16 -0.0
Week of 5/1100.0*Average seed
Black Wolves 7 Rock 10 +0.4
Games Above .500
Chance Will Make Playoffs