How are these numbers calculated?

Big Games

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

Week of 4/23100.0*Chance in playoffs100.0*Average seed
Melgar 0 Palmeiras 4 In
-0.0
Junior 1 San Lorenzo 0 -3.4
-0.2
Week of 5/7100.0*Chance in playoffs100.0*Average seed
Palmeiras 1 San Lorenzo 0 -0.4
Points
Chance Will Make Playoffs