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
tot 99 dav 116 +5.5
+0.7
war 93.5 wel 84.5 +0.9
she 90.5 pin 83.5 +0.7
con 109 mcn 62 +0.5
tai 92 arn 71 -0.4
thi 115 sco 92.5 +0.2
+0.1
If winner is:HomeAway
Week of 11/17100.0*Chance in playoffs100.0*Average seed
dav vs tai+12.5-12.5
+0.8-0.8
wel vs she-2.3+2.9
-0.0+0.1
mcn vs war-2.7+2.5
-0.1+0.1
pin vs tot-1.6+1.8
arn vs thi-1.2+0.9
-0.1+0.1
sco vs con-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
02-23.0%031942296010,261,832
1-30.0001036421117,377,071
3-148.80113353414206,330,884
0-4Out043246181,994,792
4-096.701103435163001,471,885
Total:17.6%0012510152222166127,436,464
Points
Chance Will Make Playoffs