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
mcn 118 war 81 -0.4
-0.5
wel 61 she 80.5 +0.2
arn 58 thi 86.5 +0.2
-0.1
pin 126.5 tot 101 -0.1
-0.1
sco 129.5 con 127.5 +0.1
+0.1
dav 105 tai 67.5 +0.1
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
sco vs war-0.3In
-0.6+0.6
dav vs thi-0.3+0.3
+0.1-0.1
mcn vs she-0.2+0.2
-0.1+0.1
wel vs tot-0.1+0.1
arn vs con+0.1-0.1
+0.2-0.2
pin vs tai+0.1-0.1
-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
02-1In2066155,387,979
1-2In122522325,384,299
0-397.2%06284320301,799,621
3-0In64361,799,597
Total:99.7%16372612620014,371,496
Points
Chance Will Make Playoffs