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 -12.5
-0.3
San Jose 3 Penarol 1 +1.3
+0.2
Week of 5/7100.0*Chance in playoffs100.0*Average seed
LDU 4 San Jose 0 -23.6
-0.3
Penarol 0 Flamengo 0 In
+0.4
Points
Chance Will Make Playoffs