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 -16.3
-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 -0.3
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-4.0+4.0
-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%0112353614203,880,878
1-32.7031636341102,586,124
3-197.30073140183002,585,852
0-40.00031541347649,362
4-0In424412650649,264
Total:49.2%02410151818141052010,351,480
Points
Chance Will Make Playoffs