How are these numbers calculated?

Big Games

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

Week of 5/16100.0*Chance in playoffs100.0*Average seed
Independiente Medellin 1 Emelec 2 +51.2
+0.7
Melgar 2 River Plate 3 +3.4
+0.0
Week of 5/24100.0*Chance in playoffs100.0*Average seed
River Plate 1 Independiente Medellin 2 -32.1
-0.3
Emelec 3 Melgar 0 In
+0.1
Points
Chance Will Make Playoffs

Lottery

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

Big Games

Week of 5/16100.0*Lottery seed
Independiente Medellin 1 Emelec 2 -5.5
Libertad 1 Sport Boys 1 -0.2
Universidad Catolica 2 Atletico-PR 3 +0.2
Melgar 2 River Plate 3 -0.1
Botafogo 1 Atletico Nacional 0 +0.1
Sporting Cristal 0 Santa Fe 2 +0.1
San Lorenzo 2 Flamengo 1 +0.1
Zulia 0 Nacional 0 +0.0
Lanus 3 Chapecoense 0 +0.0
Week of 5/24100.0*Lottery seed
Emelec 3 Melgar 0 -2.6
River Plate 1 Independiente Medellin 2 +1.5
Penarol 2 Jorge Wilstermann 0 -0.3
Atletico Nacional 3 Barcelona 1 -0.2
Estudiantes 1 Botafogo 0 -0.2
Gremio 4 Zamora 0 +0.0