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
tai 92 arn 71 +15.8
+0.8
war 93.5 wel 84.5 +2.4
+0.1
con 109 mcn 62 +1.9
she 90.5 pin 83.5 +1.7
+0.1
tot 99 dav 116 -0.7
thi 115 sco 92.5 +0.6
If winner is:HomeAway
Week of 11/17100.0*Chance in playoffs100.0*Average seed
dav vs tai-13.3+13.3
-0.7+0.7
mcn vs war-3.0+2.8
-0.1+0.1
wel vs she-2.4+3.0
-0.1+0.1
pin vs tot-1.4+1.5
-0.1+0.1
arn vs thi-1.4+1.1
sco vs con-0.1+0.1
+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
02-296.3%00327442240010,732,539
1-338.5018294018307,376,490
3-1In193448806,941,612
0-41.0011137381101,904,376
4-0In143937111,687,471
Total:76.2%141223201612731028,642,488
Points
Chance Will Make Playoffs