How are these numbers calculated?

Big Games

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

Week of 11/28100.0*Chance in playoffs100.0*Average seed
Hoffenheim 2 Shakhtar Donetsk 3 -4.4
Olympique Lyonn 2 Manchester City 2 -3.5
-0.2
Week of 12/12100.0*Chance in playoffs100.0*Average seed
Shakhtar Donetsk 1 Olympique Lyonn 1 In
+0.2
Manchester City 2 Hoffenheim 1 -0.1
Points
Chance Will Make Playoffs

Lottery

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

Big Games

Week of 11/28100.0*Lottery seed
Olympique Lyonn 2 Manchester City 2 -1.3
Hoffenheim 2 Shakhtar Donetsk 3 -0.2
Week of 12/12100.0*Lottery seed
Shakhtar Donetsk 1 Olympique Lyonn 1 +1.9
Manchester City 2 Hoffenheim 1 -1.1