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
Houston 128.8 Tron 105.6 +13.0
+0.6
Andrew 137.5 Brian 94.6 -5.7
-0.2
Alex 106.5 Brett 86 -3.6
-0.1
Bo 115.7 Chris 86.7 +1.5
+0.1
If winner is:HomeAway
Week of 11/17100.0*Chance in playoffs100.0*Average seed
Brian vs Houston-12.8+12.8
-0.6+0.6
Bo vs Andrew+7.2-7.2
+0.3-0.3
Alex vs Chris-2.8+2.8
-0.2+0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
103-0In1001,929,969
92-197.9%7242225,781,313
81-265.31364513405,783,308
70-34.7318015001,932,150
Total:74.3%4442512420015,426,740
Games Above .500
Chance Will Make Playoffs