How are these numbers calculated?

Big Games

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

Week of 11/27100.0*Average seed
Won 128.58 Exp 128.37 +0.9
Dra 98.38 Sam 98.07 -0.1
Nin 85.69 jos 91.67 -0.1
Jol 119.49 rem 102.87 +0.1
Week of 12/4100.0*Average seed
Won 161.26 Nin 67.35 +0.5
Dra 90.97 jos 126.13 -0.1
Jol 138.5 Exp 112.21 +0.1
Games Above .500
Chance Will Make Playoffs