How are these numbers calculated?

Big Games

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

Week of 3/8100.0*Chance in playoffs100.0*Average seed
PondScum 4 TheHellfish 2 -19.4
-0.3
LordStanleysCup 1 Jackals 1 -0.0
If winner is:HomeTieAway
Week of 3/15100.0*Chance in playoffs100.0*Average seed
Jackals vs TheHellfish-19.7-7.6+21.5
-0.2-0.1+0.2
Nordiques vs TheHellfish-19.6-7.5+21.4
-0.2-0.1+0.2
PondScum vs BaystateBulldogs-19.6-7.5+21.3
-0.2-0.1+0.2
Bombers vs PondScum+21.2-7.3-19.7
+0.2-0.1-0.2

What If

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

100100100100100100100100100100
If finish:Chance inChowderChance will finish regular season at seed
TPWL-OTTplayoffsCup12345678910Count
1920-00InNo100136,221
1810-0179.6%No802060,032
1711-0070.8No7129272,062
00-0270.5No70306,821
1601-0129.0No297160,495
1502-0020.2No2080137,561
Total:63.4%No6337673,192
Points
Chance Will Make Playoffs