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 5/16100.0*Lottery seed
Sporting Cristal 0 Santa Fe 2 -2.4
San Lorenzo 2 Flamengo 1 +0.3
Libertad 1 Sport Boys 1 -0.2
Barcelona 0 Estudiantes 3 +0.1
Universidad Catolica 2 Atletico-PR 3 -0.1
Lanus 3 Chapecoense 0 -0.1
Zulia 0 Nacional 0 +0.0
The Strongest 1 Santos 1 -0.0
Atletico-MG 4 Godoy Cruz 1 +0.0
Melgar 2 River Plate 3 -0.0
Week of 5/24100.0*Lottery seed
Estudiantes 1 Botafogo 0 +0.7
River Plate 1 Independiente Medellin 2 +0.4
Palmeiras 3 Atletico Tucuman 1 -0.3
Emelec 3 Melgar 0 +0.1
Points
Chance Will Make Playoffs