How are these numbers calculated?

Big Games

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

Week of 3/9100.0*Chance in playoffs100.0*Average seed
IceDevils 5 MustangJakes 7 +11.9
+0.1
BostonLobsters 4 Shenanigans 2 -9.3
-0.2
TuukkaDump 3 PIA 3 (ot)-0.9
-0.1
If winner is:HomeTieAway
Week of 3/16100.0*Chance in playoffs100.0*Average seed
Shenanigans vs PIA+15.0-3.0-14.3
+0.2-0.1-0.2
BostonLobsters vs IceDevils+14.5-3.0-13.8
+0.1-0.0-0.1

What If

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

100100100100100100100100
If finish:Chance inChowderChance will finish regular season at seed
TPWL-OTTplayoffsCup12345678Count
2120-00100.0%No29710486,825
2010-0193.0No8857216,650
1911-0084.6No8515971,562
00-0284.1No841624,186
1801-0156.0No5644215,676
1702-0043.7No4456486,981
Total:77.6%No771222,401,880
Points
Chance Will Make Playoffs