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*Chance in playoffs100.0*Average seed
Paulista 2 River Plate 1 +17.1
+0.4
Week of 4/11100.0*Chance in playoffs100.0*Average seed
El Nacional 2 River Plate 0 +17.7
+0.0
Libertad 1 Paulista 0 -11.4
-0.2
Week of 4/19100.0*Chance in playoffs100.0*Average seed
Paulista 0 El Nacional 0 Out
-0.4
River Plate 1 Libertad 0 Out
-0.3
Points
Chance Will Make Playoffs

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 4/4100.0*Lottery seed
Paulista 2 River Plate 1 -4.9
The Strongest 1 Goias 0 +0.3
Universidad Catolica 2 Corinthians 3 +0.1
Cerro Porteno 1 Rosario Central 3 -0.0
Week of 4/11100.0*Lottery seed
Libertad 1 Paulista 0 +2.0
El Nacional 2 River Plate 0 -0.7
Palmeiras 2 Cerro Porteno 3 +0.4
Rosario Central 1 Atletico Nacional 2 -0.2
Rocha 0 Velez Sarsfield 5 -0.1
Deportivo Cali 2 Tigres UANL 2 -0.0
Week of 4/19100.0*Lottery seed
Paulista 0 El Nacional 0 +1.3
River Plate 1 Libertad 0 +0.9
Sao Paulo 2 Caracas 0 -0.2
Chivas Guadalajara 0 Cienciano 0 -0.0