How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Ethan 111.1 Shawn 96.48 In
+0.2
Laurel 94.74 Jenn 97.14 -0.2
+0.2
Shara 71.8 Tom H 63.14 -0.0
Dave 93.34 Eric 88.58 +0.1
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Erica vs Ethan-0.4+0.2
Jenn vs Eric+0.2-0.1
Laurel vs Riley-0.1+0.1

What If

Chances based on how well the Ethan finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
102-0In267417,073,154
91-1In2772115,481,318
80-2In225222403,434,544
Total:In13701420035,989,016
Games Above .500
Chance Will Make Playoffs

Lottery

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

Big Games

Week of 11/17100.0*Lottery seed
Ethan 111.1 Shawn 96.48 -0.2
Laurel 94.74 Jenn 97.14 -0.2
Dave 93.34 Eric 88.58 -0.1
If winner is:HomeAway
Week of 11/24100.0*Lottery seed
Erica vs Ethan+0.4-0.2
Jenn vs Eric-0.2+0.1
Laurel vs Riley+0.1-0.1

What If

100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L123456789101112
102-02674
91-127721
80-222522240
Total:137014200