How are these numbers calculated?

Big Games

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

Week of 4/23100.0*Chance in playoffs100.0*Average seed
LDU 2 Flamengo 1 +19.6
+0.4
San Jose 3 Penarol 1 +2.4
-0.1
Week of 5/7100.0*Chance in playoffs100.0*Average seed
LDU 4 San Jose 0 +59.5
+0.9
Penarol 0 Flamengo 0 -4.8
+0.1
Points
Chance Will Make Playoffs