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
Sao Paulo 1 Chivas Guadalajara 2 -10.0
-0.4
Week of 4/11100.0*Chance in playoffs100.0*Average seed
Cienciano 0 Sao Paulo 2 +14.0
+0.2
Caracas 0 Chivas Guadalajara 0 +8.3
+0.1
Week of 4/19100.0*Chance in playoffs100.0*Average seed
Chivas Guadalajara 0 Cienciano 0 +0.2
Sao Paulo 2 Caracas 0 +0.2
Points
Chance Will Make Playoffs