How are these numbers calculated?

Big Games

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

Week of 1/25100.0*Chance in playoffs100.0*Average seed
Walsh 150 Nick 168 +8.4
+0.7
Nick 128 Birk 160.5 -5.8
-0.7
David 196 Jacob 182.5 -1.2
Brent 161 Adam 149.5 -0.4
Micah 175.5 Birk 158.5 -0.3
Adam 159.5 Jacob 154.5 +0.3
+0.1
David 132.5 Brent 126.5 -0.2
-0.1
Dosters 102.5 Bill 213 -0.1
Walsh 124.5 Micah 178 -0.1
Week of 2/1100.0*Chance in playoffs100.0*Average seed
Brent 5 Micah 2 +0.7
+0.1
If winner is:HomeAway
Brent vs Nick-23.7+23.8
-0.8+0.8
Micah vs Jacob-3.1+3.1
-0.1+0.1
David vs Birk+2.8-2.8
+0.1-0.1
Walsh vs Adam-1.9+1.9
-0.1+0.1
Bill vs Jacob-1.3+1.3
Dosters vs Adam-0.8+0.8
Bill vs Birk+0.3-0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLTplayoffs123456789101112Count
122-00094.6%003194330502,410,708
111-01020.200119621714,814,218
100-0200.1012473912,413,002
Total:33.8%0015111735201009,637,928
Points
Chance Will Make Playoffs