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
Zenit 2 Lyon 0 -48.8
-0.7
Leipzig 2 Benfica 2 +2.4
+0.2
Week of 12/11100.0*Chance in playoffs100.0*Average seed
Benfica 3 Zenit 0 +19.5
+0.1
Lyon 2 Leipzig 2 -16.0
-0.5
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
Zenit 2 Lyon 0 -5.8
Leipzig 2 Benfica 2 +1.6
Week of 12/11100.0*Lottery seed
Lyon 2 Leipzig 2 -3.9
Benfica 3 Zenit 0 +1.2