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 -0.2
-0.4
wel 61 she 80.5 +0.1
pin 126.5 tot 101 -0.1
-0.1
arn 58 thi 86.5 +0.1
-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
sco vs war-0.2In
-0.5+0.5
dav vs thi-0.2+0.2
+0.1-0.1
mcn vs she-0.1+0.1
-0.0+0.1
wel vs tot-0.1+0.1
pin vs tai+0.1-0.1
-0.1+0.1
arn vs con+0.1-0.1
+0.2-0.1

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
02-1In17681617,813,866
1-2In1255221216,264,244
3-0In59416,494,239
0-398.3%111343814204,954,115
Total:99.8%15412611520045,526,464
Points
Chance Will Make Playoffs