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 -1.0
-0.5
mcn 118 war 81 -0.4
wel 61 she 80.5 +0.4
-0.1
arn 58 thi 86.5 +0.2
+0.1
dav 105 tai 67.5 -0.2
-0.1
sco 129.5 con 127.5 -0.1
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
wel vs tot-0.4+0.4
mcn vs she+0.2-0.2
sco vs war-0.1+0.1
arn vs con-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
02-1Out960315,387,503
1-2Out12885,386,764
0-3Out1001,799,421
3-0Out11036421101,797,808
Total:Out0149285714,371,496
Points
Chance Will Make Playoffs