How are these numbers calculated?

Big Games

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

Week of 11/20100.0*Chance in playoffs100.0*Average seed
Van 176.7 Keegan 165.4 +8.8
+0.7
Weezy 157.6 Scout 118.3 -1.2
-0.1
Kyle 144.2 Paul 176.1 -0.7
Jackson 116.5 Snider 146.2 -0.4
Willy 139 Corey 126.2 +0.3
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Corey 189.3 Keegan 169.1 In
Paul 159.2 Jackson 151.8 In
+0.1
Snider 159.1 Van 148.5 -0.8
-0.5
Kyle 175.7 Weezy 160.2 +0.3
+0.2
If winner is:HomeAway
Week of 12/4100.0*Chance in playoffs100.0*Average seed
Jackson vs Van-0.6+0.6
Snider vs Corey-0.3+0.3
Weezy vs Willy-0.2+0.2
Keegan vs Paul+0.1-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
91-0In99114,143,849
80-1In244526514,146,891
Total:In622313328,290,740
Games Above .500
Chance Will Make Playoffs