How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Average seed
ITSAWASH 128.06 Mattress 46.1 -0.6
Annexation 88.48 Memo 65.82 -0.1
Whites 89.66 10Deep 48.92 -0.1
Duchess 74.94 Sass 82.52 +0.1
Week of 11/22100.0*Average seed
ElToro 80.74 Mattress 84.22 +0.2
Games Above .500
Chance Will Make Playoffs