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
Central Islip 62 Newfield 58 +5.6
+1.5
ESM 47 Smithtown East 57 -0.5
-0.1
Centereach 56 PatchMed 62 -0.3
Sachem North 53 BBP 62 +0.3
Comsewogue 64 Lindenhurst 65 +0.3
+0.1
Mt. Sinai 68 Sachem East 58 +0.2
+0.1
Northport 75 HHH West 69 -0.1
Smithtown East 72 Floyd 44 -0.1
Riverhead 58 Southampton 62 +0.1
Copiague 54 Commack 63 -0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
148-0In801912,318
137-1In40431530017,143
126-2In213303217510060,503
115-3In0021023302310200120,454
104-4In00028202925124100151,143
93-5100.0%00161728261551000120,955
82-692.4001515262717610060,752
71-723.100151729281541017,249
60-8Out14142428207202,197
Total:96.4%234679101097775432211000000552,714
Games Above .500
Chance Will Make Playoffs