How are these numbers calculated?

Big Games

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

Week of 11/10100.0*Chance in playoffs100.0*Average seed
thi 115 sco 92.5 -5.3
-0.6
war 93.5 wel 84.5 +0.8
she 90.5 pin 83.5 +0.7
con 109 mcn 62 +0.5
tai 92 arn 71 -0.3
tot 99 dav 116 -0.2
If winner is:HomeAway
Week of 11/17100.0*Chance in playoffs100.0*Average seed
sco vs con+3.3-2.8
+0.7-0.5
wel vs she-0.7+0.9
mcn vs war-0.8+0.7
-0.1+0.1
pin vs tot-0.5+0.5
+0.1-0.1
arn vs thi-0.3+0.3
-0.1+0.1
dav vs tai+0.1-0.1
-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
02-20.0%006284817110,749,145
1-3Out022050297,497,225
3-12.5021637331206,818,901
0-4Out012881,958,476
4-044.10111323417401,618,741
Total:3.1%00126121926201428,642,488
Points
Chance Will Make Playoffs