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
con 109 mcn 62 -16.2
-1.0
war 93.5 wel 84.5 +2.2
she 90.5 pin 83.5 +1.6
+0.1
thi 115 sco 92.5 +0.8
tot 99 dav 116 -0.8
tai 92 arn 71 -0.4
If winner is:HomeAway
Week of 11/17100.0*Chance in playoffs100.0*Average seed
mcn vs war+17.2-17.1
+0.9-0.9
wel vs she-3.9+3.9
-0.1+0.1
pin vs tot-2.5+2.5
-0.1+0.1
arn vs thi-2.3+2.3
-0.1+0.1
sco vs con-0.3+0.3
dav vs tai+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
02-247.9%0112353614203,581,192
1-32.7031636341102,387,545
3-197.30073141183002,383,100
4-0In424412650598,085
0-40.00031541347597,574
Total:49.2%0241015181814105209,547,496
Points
Chance Will Make Playoffs