How are these numbers calculated?

Big Games

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

Week of 4/4100.0*Average seed
Winder Barrow H 0 Clarke Central 4 -0.1
Week of 4/12100.0*Average seed
Clarke Central 8 Salem High Scho 1 -0.2
Clarke Central 3 Cedar Shoals Hi 0 -0.1
Week of 4/18100.0*Average seed
Gainesville Hig 0 Clarke Central 2 -0.6
Points
Chance Will Make Playoffs