How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Sunday100.0*Chance in playoffs100.0*Average seed
Birk 162 Jacob 154.5 +13.2
+0.6
Bill 163 Micah 141.5 +2.2
+0.1
Walsh 194.5 Dosters 192 -1.6
-0.1
Nick 169 Adam 139 -0.2
David 96.5 Andrew 191 -0.1
If winner is:HomeAway
Thursday100.0*Chance in playoffs100.0*Average seed
Birk vs Dosters+6.1-6.1
+0.4-0.4
Nick vs Andrew-1.6+1.6
Bill vs Adam+1.5-1.5
Brent vs Jacob+1.5-1.5
David vs Micah+1.4-1.4
Walsh vs Perry-0.5+0.5
-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLplayoffs123456789101112Count
175-00In4295215566,579
164-01In02316342,808,276
153-02100.0%036233105,623,628
142-0397.501857232005,622,733
131-0463.20174532502,811,561
120-058.20840439566,767
Total:90.6%01835311572017,999,544
Points
Chance Will Make Playoffs