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
Kevin 66.1 Josh 97.08 +18.6
+0.6
Chad 109.72 Matthew 120.36 +8.2
+0.1
Jacob 85.44 Maria 126.76 -0.3
-0.1
Kyle 132.9 J Z 89.22 -0.1
Amanda 99.68 Jacqueline 77.7 +0.0
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Chad 145.36 Amanda 110.24 -30.0
-0.3
Josh 161.12 Jacqueline 84.76 +22.2
+0.3
Kevin 160.54 Maria 91.6 +0.9
Lindsey 111.14 Matthew 133.82 -0.1
-0.0
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Chad vs Josh-5.4In
-0.1+1.2
Jacob vs J Z-2.6+12.2
-0.1+0.4
Kyle vs Kevin-0.0+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
81-0In121453310,546,941
70-153.0%6474782,043,643
Total:58.3%0210454292,590,584
Games Above .500
Chance Will Make Playoffs