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
Dosters 102.5 Bill 213 +6.9
+0.7
Nick 128 Birk 160.5 -1.2
David 196 Jacob 182.5 -0.9
Walsh 150 Nick 168 +0.7
Adam 159.5 Jacob 154.5 +0.3
+0.1
David 132.5 Brent 126.5 -0.3
-0.1
Micah 175.5 Birk 158.5 -0.2
Brent 161 Adam 149.5 -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
Bill vs Birk+10.8-10.8
+1.0-1.0
Bill vs Jacob+9.8-9.8
+1.0-1.0
Brent vs Nick+4.5-4.5
+0.1-0.1
Walsh vs Adam-1.9+1.9
-0.1+0.1
David vs Birk+1.4-1.4
Dosters vs Adam-1.0+1.0
-0.1+0.1
Micah vs Jacob-0.8+0.8

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLTplayoffs123456789101112Count
144-000In81181603,531
133-010In1946305002,409,407
122-02099.9%03224228603,611,486
111-03062.302154633502,409,700
100-040Out2154231603,804
Total:84.3%101416171414105109,637,928
Points
Chance Will Make Playoffs