How are these numbers calculated?

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 4/8100.0*Lottery seed
Oriente Petrolero 2 Universitario 2 +0.9
Barcelona de Guayaquil 2 Boca Juniors 2 +0.1
Libertad 0 River Plate 2 -0.1
Olimpia 4 Gimnasia y Esgrima 1 +0.0
Week of 4/15100.0*Lottery seed
Oriente Petrolero 0 Racing 1 +0.6
12 de Octubre 1 America de Cali 4 -0.1
Universidad Catolica 1 Paysandu 1 -0.0
Week of 4/25None
Points
Chance Will Make Playoffs