How are these numbers calculated?

Big Games

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

Week of 10/27100.0*Chance in playoffs100.0*Average seed
Sofia 124.32 Dave 86.08 -13.7
-1.0
Julie 156.7 Veronika 119.28 -0.6
Danny 97.86 Netta 134.28 -0.4
Emily 105.44 Katie 120.22 -0.3
Will 64 Davalyn 110.32 -0.3
Francisco 93.82 Justin 106.68 +0.3
Laurel 132.28 Lucas 88.12 -0.1
If winner is:HomeAway
Week of 11/3100.0*Chance in playoffs100.0*Average seed
Laurel vs Dave-17.8+17.8
-1.3+1.3
Julie vs Justin-1.8+1.8
-0.1+0.1
Sofia vs Katie-1.4+1.4
-0.1+0.1
Emily vs Davalyn+1.3-1.3
+0.1-0.1
Will vs Netta+0.8-0.8
Danny vs Francisco-0.6+0.6
Veronika vs Lucas+0.3-0.3

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
95-0In7434550222,514
84-199.9%073539163001,102,745
73-273.2021228311961002,206,577
62-35.200151628281761002,207,476
51-40.000151932271421,103,737
40-5Out003184634222,091
Total:43.2%027101112111110875417,065,140
Games Above .500
Chance Will Make Playoffs