How are these numbers calculated?

Big Games

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

Week of 11/6100.0*Average seed
Hartman 10 Kato 3 -0.2
Zwiefel 9 M. Jackson 4 +0.1
K. Jackson 5 Scheck 8 -0.1
Week of 11/20100.0*Average seed
M. Jackson 8 K. Jackson 3 -0.9
Witcraft 11 Kato 5 +0.1
Games Above .500
Chance Will Make Playoffs