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
John 72.8 Evan 122.4 -0.1
Becky 97.2 Jess 108.8 -0.1
Week of 11/26None
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