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 -20.0
-0.8
Kevin 66.1 Josh 97.08 -3.7
Kyle 132.9 J Z 89.22 -2.6
-0.1
Amanda 99.68 Jacqueline 77.7 +0.5
Jacob 85.44 Maria 126.76 -0.2
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Chad 145.36 Amanda 110.24 +15.0
+0.5
Josh 161.12 Jacqueline 84.76 -10.0
-0.1
Lindsey 111.14 Matthew 133.82 -0.4
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Chad vs Josh+29.2Out
+0.5-0.5
Jacob vs J Z-4.2+4.2
-0.1+0.1
Kyle vs Kevin+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-058.3%17424214,147,025
60-1Out752514,143,711
Total:29.2%821581228,290,736
Games Above .500
Chance Will Make Playoffs