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
The Strongest 1 Goias 0 -0.1
Week of 4/11100.0*Average seed
Union Espanola 1 Newell's Old Boys 1 +0.0
Week of 4/19100.0*Average seed
Goias 0 Union Espanola 0 +0.2
Chance Will Make Playoffs