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
Crease 17 Disco 11 -11.6
-0.5
Mafia 5 Puckin 8 +3.0
+0.1
Butt 14 Jeb 5 -1.9
Buddies 8 Glory 12 +1.6
+0.0
Jazz 7 Yeo 9 +0.4
Week of 8/20100.0*Chance in playoffs100.0*Average seed
Disco 5 Jazz 3 +14.0
+0.5
Puckin 7 Crease 9 +6.4
+0.1
Glory 10 Butt 6 +2.6
+0.1
Jeb 6 Mafia 15 +2.0
Yeo 5 Buddies 4 +1.3
+0.1
If winner is:HomeAway
Week of 8/27100.0*Chance in playoffs100.0*Average seed
Disco vs BuddiesIn-28.3
+0.6-0.8
Puckin vs Jeb-10.0+13.1
-0.1+0.2
Yeo vs Butt+15.5-7.0
+0.4-0.2
Mafia vs Glory-15.1+6.8
-0.4+0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
61-0In10041,444,176
50-149.1%2227391133,136,844
Total:77.4%661218574,581,020
Games Above .500
Chance Will Make Playoffs