How are these numbers calculated?

Big Games

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

Week of 11/27100.0*Chance in playoffs100.0*Average seed
Barcelona 3 Borussia Dortmund 1 -14.3
-0.5
Slavia Praha 1 Internazionale 3 -6.9
-0.1
Week of 12/11100.0*Chance in playoffs100.0*Average seed
Internazionale 1 Barcelona 2 +26.6
+0.3
Borussia Dortmund 2 Slavia Praha 1 +22.5
+0.2
Points
Chance Will Make Playoffs

Lottery

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

Big Games

Week of 11/27100.0*Lottery seed
Barcelona 3 Borussia Dortmund 1 -3.9
Slavia Praha 1 Internazionale 3 -0.6
Week of 12/11100.0*Lottery seed
Internazionale 1 Barcelona 2 +2.1
Borussia Dortmund 2 Slavia Praha 1 +1.8