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
Jackson 116.5 Snider 146.2 +23.7
+1.1
Weezy 157.6 Scout 118.3 -3.1
-0.1
Van 176.7 Keegan 165.4 +2.0
+0.1
Kyle 144.2 Paul 176.1 -1.9
-0.1
Willy 139 Corey 126.2 +1.5
+0.1
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Snider 159.1 Van 148.5 +21.5
+0.9
Corey 189.3 Keegan 169.1 +3.9
+0.2
Paul 159.2 Jackson 151.8 +3.2
Kyle 175.7 Weezy 160.2 +0.9
+0.2
If winner is:HomeAway
Week of 12/4100.0*Chance in playoffs100.0*Average seed
Snider vs Corey+0.7-0.7
Jackson vs Van+0.3-0.3
Weezy vs Willy-0.2+0.2
Keegan vs Paul+0.2-0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
91-0In514914,147,638
80-1In026502414,143,102
Total:In2638251228,290,740
Games Above .500
Chance Will Make Playoffs