How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Average seed
Becky 97.2 Jess 108.8 +0.2
John 72.8 Evan 122.4 +0.1
Week of 11/26100.0*Average seed
Jess 53.7 Piatt 116.3 -0.2
Ryan 83.9 Kevin 123.3 -0.1
Week of 12/3100.0*Average seed
John 99.6 Ryan 84.8 -0.1
Kevin 68.6 Jess 112.8 +0.1
Games Above .500
Chance Will Make Playoffs