How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
pin 126.5 tot 101 +10.3
+0.6
wel 61 she 80.5 +2.9
+0.1
mcn 118 war 81 -2.8
-0.1
arn 58 thi 86.5 +1.2
sco 129.5 con 127.5 -0.3
+0.1
dav 105 tai 67.5 -0.3
+0.1
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
pin vs tai+5.9-6.4
+0.7-0.8
dav vs thi-1.6+1.5
wel vs tot-1.2+1.4
-0.1+0.1
mcn vs she-1.0+1.2
-0.1+0.1
sco vs war-0.5+0.4
+0.1-0.1
arn vs con-0.2+0.1
+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
01-299.0%073841121017,193,515
2-1In1214727316,954,001
0-355.9116393111105,806,140
3-0In3350175,572,808
Total:94.0%5142325199410045,526,464
Points
Chance Will Make Playoffs