How are these numbers calculated?

Big Games

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

Week of 12/15100.0*Chance in playoffs100.0*Average seed
St. Mary 11 St. Alphonsus 38 +6.2
+0.4
St. Colette 18 St. Raymond 19 -0.9
St. Hubert 21 St. James 24 +0.3
+0.1
St. Francis 21 Wayside 17 -0.3

What If

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

100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234567891011Count
10-12In10012,372,651*
91-3-0In524174,498,923
80-4-0In82628371,127,966
Total:In82124217,999,540

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs