How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 9/12100.0*Chance in playoffs100.0*Average seed
BR 126 CP 64 +10.7
+0.8
BR 126 RD 100 +7.0
+0.7
BE 136 LP 100 -1.4
-0.1
DI 36 CP 64 -1.4
-0.1
CM 85 SM 105 +1.4
+0.1
If winner is:HomeAway
Week of 9/19100.0*Chance in playoffs100.0*Average seed
CH vs BR-4.5+3.8
-0.5+0.5
SM vs HP+0.7-1.0
UM vs LP-0.6+0.9
-0.1+0.1
RD vs HP+0.7-0.8
CP vs UM-0.3+0.3
CM vs BE+0.1-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
1614-0In1003,544
1513-1In1000026,198
1412-2In9910119,375
1311-3In94420328,895
1210-4100.0%751510000625,629
119-5100.03829301300863,492
108-698.7725381117010889,714
97-785.10711243581410697,555
86-843.800811243716300417,300
75-98.600081234311220190,292
64-100.50005233926664,194
53-11Out0216453615,967
42-12Out0222762,667
31-13Out397305
20-14Out0100893
Total:85.7%31151871147321104,246,020
Games Above .500
Chance Will Make Playoffs