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
Centereach 56 PatchMed 62 -5.0
-1.4
ESM 47 Smithtown East 57 -0.3
Sachem North 53 BBP 62 +0.2
+0.1
Central Islip 62 Newfield 58 +0.2
Mt. Sinai 68 Sachem East 58 +0.2
Copiague 54 Commack 63 +0.2
Harborfields 59 Connetquot 54 +0.1
Sachem North 48 Pierson 38 -0.1
Lindenhurst 77 PatchMed 81 +0.1
Smithtown East 72 Floyd 44 +0.1
Comsewogue 64 Lindenhurst 65 -0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
76-094.2%0161728271551008,521
65-18.6001718282614510051,708
54-20.000031023302292000129,729
43-3Out0002923322491172,656
32-4Out015224330129,578
21-5Out01188152,081
10-6Out2988,441
Total:2.3%00000112334688912131516552,714
Games Above .500
Chance Will Make Playoffs