How are these numbers calculated?

Big Games

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

Week of 10/22100.0*Chance in playoffs100.0*Average seed
U. Catolica 2 Internacional 1 -21.1
-0.4
Gremio 1 America de Cali 1 In
+0.3
Points
Chance Will Make Playoffs

Lottery

Why are you looking down here? We just made the playoffs!

Big Games

Week of 10/22100.0*Lottery seed
U. Catolica 2 Internacional 1 +2.8
Gremio 1 America de Cali 1 -1.4
Boca Juniors 3 Caracas 0 -0.1