How are these numbers calculated?

Big Games

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

Week of 3/8100.0*Chance in playoffs100.0*Average seed
Botafogo-SP 1 Comercial RP 0 +2.6
+0.2
Ituano 1 Atletico Sorocaba 1 +1.1
+0.1
Week of 3/15None
Week of 3/23None
Points
Chance Will Make Playoffs