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 -10.5
-1.7
ESM 47 Smithtown East 57 -1.0
-0.1
Sachem North 53 BBP 62 +0.9
+0.1
Sachem North 48 Pierson 38 -0.8
-0.1
Centereach 56 PatchMed 62 -0.8
-0.1
Mt. Sinai 68 Sachem East 58 +0.8
+0.1
Smithtown East 72 Floyd 44 -0.6
-0.1
Lindenhurst 77 PatchMed 81 -0.6
-0.1
Longwood 54 Southampton 66 +0.5
+0.1
Comsewogue 64 Lindenhurst 65 +0.5
+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
117-0In21532291651004,344
106-1In001616272616610030,210
95-2In0002921302411300090,664
84-398.8%0014152828166100151,339
73-458.30002820282513410150,823
62-50.9001515272917610090,582
51-6Out01414252819710030,317
40-7Out0031228341934,435
Total:65.8%000112224556910109865542211000552,714
Games Above .500
Chance Will Make Playoffs