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
Huracan 1 Emelec 2 +27.0
+0.6
Deportivo Lara 0 Cruzeiro 2 +13.4
+0.2
Week of 5/7100.0*Chance in playoffs100.0*Average seed
Cruzeiro 1 Emelec 2 In
+0.3
Huracan 3 Deportivo Lara 0 In
+0.3
Points
Chance Will Make Playoffs