How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Average seed
Justin 92.66 Tom K 89.34 -0.1
Week of 12/1100.0*Average seed
Laurel 99.06 Tom H 84.46 +0.3
Tom K 59.98 Eric 102.96 -0.2
Games Above .500
Chance Will Make Playoffs