How are these numbers calculated?

Big Games

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

Week of 12/27100.0*Chance in playoffs100.0*Average seed
Comsewogue 64 Lindenhurst 65 +0.2
+0.1
Mt. Sinai 68 Sachem East 58 +0.2
+0.1
Sachem North 53 BBP 62 +0.1
ESM 47 Smithtown East 57 -0.1
-0.1
Centereach 56 PatchMed 62 -0.1
Lindenhurst 77 PatchMed 81 -0.1
Sachem North 48 Pierson 38 -0.1
Smithtown East 72 Floyd 44 -0.1
-0.1
Copiague 54 Commack 63 +0.1
Northport 75 HHH West 69 -0.1
Riverhead 58 Southampton 62 +0.1
Bellport 61 Riverhead 64 +0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
115-0In111303418510156,934
104-1In0015163029154000511,797
93-2In002112733206100661,459
82-3100.0%0014163030154100420,077
71-492.80014152728176100132,513
60-517.10141326301961016,424
Total:98.8%013469121414119743211000001,899,204
Games Above .500
Chance Will Make Playoffs