How are these numbers calculated?

Big Games

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

Week of 8/13100.0*Chance in playoffs100.0*Average seed
Mafia 5 Puckin 8 +18.5
+1.1
Crease 17 Disco 11 +2.1
Butt 14 Jeb 5 +2.1
-0.1
Jazz 7 Yeo 9 +1.2
+0.2
Buddies 8 Glory 12 +1.1
+0.2
Week of 8/20100.0*Chance in playoffs100.0*Average seed
Puckin 7 Crease 9 -13.0
-0.5
Glory 10 Butt 6 +5.8
+0.2
Disco 5 Jazz 3 -4.6
-0.1
Yeo 5 Buddies 4 -2.2
Jeb 6 Mafia 15 +1.0
-0.1
If winner is:HomeAway
Week of 8/27100.0*Chance in playoffs100.0*Average seed
Puckin vs JebInOut
+1.1-1.1
Yeo vs Butt+0.2-0.2
Mafia vs Glory-0.2+0.2
Disco vs Buddies-0.1+0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
51-0In168414,145,718
40-1Out25502514,145,022
Total:50.0%84212251228,290,740
Games Above .500
Chance Will Make Playoffs