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 +14.5
+1.0
Butt 14 Jeb 5 +3.8
-0.1
Crease 17 Disco 11 +1.0
Buddies 8 Glory 12 +0.9
+0.1
Jazz 7 Yeo 9 +0.3
+0.1
Week of 8/20100.0*Chance in playoffs100.0*Average seed
Puckin 7 Crease 9 -9.1
-0.3
Glory 10 Butt 6 +7.5
+0.2
Yeo 5 Buddies 4 -3.4
Jeb 6 Mafia 15 +2.0
Disco 5 Jazz 3 -1.4
-0.1
If winner is:HomeAway
Week of 8/27100.0*Chance in playoffs100.0*Average seed
Puckin vs Jeb+42.9Out
+0.9-1.2
Disco vs Buddies+0.8-0.9
-0.1+0.1
Mafia vs Glory+0.4-0.2
-0.2+0.1
Yeo vs Butt+0.4-0.2
+0.3-0.1

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
51-098.7%1287142,187,458
40-1Out21572132,393,562
Total:55.8%7491025974,581,020
Games Above .500
Chance Will Make Playoffs