How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Chance in playoffs100.0*Average seed
Guns N Roses 9 Harkins 8 +7.5
+0.5
La Perceuse 12 Knights 11 (so)-2.8
-0.0
Les Brasseurs 9 Gorillaz 7 -0.1
Week of 11/20100.0*Chance in playoffs100.0*Average seed
La Perceuse 8 Guns N Roses 9 +10.2
+0.6
Les Brasseurs 7 Harkins 8 (so)-3.3
-0.1
Knights 6 Gorillaz 8 +0.5
+0.2
If winner is:HomeHome SOAway SOAway
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Harkins vs GorillazOutOut+11.1+14.3
-0.3-0.3+0.2+0.3
La Perceuse vs Les BrasseursOutOut+11.1+14.3
-0.3-0.3+0.2+0.3
Guns N Roses vs Knights+11.1+11.1+4.2Out
+0.4+0.4+0.3-0.6

What If

Chances based on how well the Guns N Roses finish out the regular season.   Explain

100100100100100100
If finish:Chance inPresChance will finish regular season at seed
TPWL-OTplayoffsTrophy123456Count
1410-025.0%No25502530,864,519
1300-118.1No1849334,618,296
1201-0OutNo10026,254,325
Total:13.8%No14295761,737,140
Points
Chance Will Make Playoffs