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
war 93.5 wel 84.5 -15.1
-1.0
she 90.5 pin 83.5 +1.5
+0.1
con 109 mcn 62 +1.5
thi 115 sco 92.5 +0.9
tot 99 dav 116 -0.7
tai 92 arn 71 -0.3
If winner is:HomeAway
Week of 11/17100.0*Chance in playoffs100.0*Average seed
wel vs she+17.1-17.1
+0.9-0.9
mcn vs war-4.0+4.0
-0.1+0.1
pin vs tot-2.4+2.4
-0.1+0.1
arn vs thi-2.2+2.2
-0.1+0.1
sco vs con-0.3+0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
02-261.2%021941299103,879,095
3-198.801104037111002,589,092
1-35.105233727802,587,798
4-0In629422120648,248
0-40.00052041285647,247
Total:55.2%0251216191713842010,351,480
Points
Chance Will Make Playoffs