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
Chad 109.72 Matthew 120.36 +3.0
+0.4
Kevin 66.1 Josh 97.08 -2.1
Kyle 132.9 J Z 89.22 -0.0
Lindsey 84.58 Allie 126.3 -0.0
Jacob 85.44 Maria 126.76 +0.3
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Chad 145.36 Amanda 110.24 -0.3
Lindsey 111.14 Matthew 133.82 In
+0.0
Josh 161.12 Jacqueline 84.76 -0.1
Allie 141.48 J Z 155.2 +0.2
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Allie vs Matthew-0.7+0.8
Kyle vs Kevin-0.0+0.5
Chad vs Josh+0.0-0.2
Jacob vs J Z-0.0+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
91-0In35353141,823,947
80-1In35540350,766,637
Total:In16174422292,590,584
Games Above .500
Chance Will Make Playoffs