How are these numbers calculated?

Big Games

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

Week of 11/8100.0*Chance in playoffs100.0*Average seed
Dave 107.96 Katie 143.22 -20.1
-1.3
Taylor 89.14 Ben 88.04 -3.2
-0.2
Danny 122.28 Veronika 129.42 +2.5
+0.1
Will 145.58 Julie 92.14 -2.1
-0.1
Sofia 83.3 Netta 99.52 +1.9
+0.1
Lucas 147.72 Morgan 101.78 -0.4
Laurel 140.38 Russell 121.14 -0.3
-0.1
If winner is:HomeAway
Week of 11/15100.0*Chance in playoffs100.0*Average seed
Dave vs Russell+26.4-26.3
+1.5-1.5
Sofia vs Francisco-6.3+6.3
-0.2+0.2
Will vs Veronika-3.5+3.5
-0.2+0.2
Danny vs Taylor-2.6+2.6
Emily vs Julie+1.3-1.3
+0.1-0.1
Laurel vs Netta-0.2+0.2
-0.1+0.1
Lucas vs Ben-0.1+0.1
Katie vs Morgan-0.1+0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516Count
82-097.0%832411632,407,904
71-117.441438321114,818,191
60-2Out02436291012,411,841
Total:32.9%281211201612107309,637,936
Games Above .500
Chance Will Make Playoffs