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
Lindenhurst 77 PatchMed 81 -8.2
-1.5
Comsewogue 64 Lindenhurst 65 +5.2
+1.3
Mt. Sinai 68 Sachem East 58 +0.7
+0.1
ESM 47 Smithtown East 57 -0.5
-0.1
Sachem North 48 Pierson 38 -0.5
-0.1
Centereach 56 PatchMed 62 -0.5
Sachem North 53 BBP 62 +0.4
+0.1
Central Islip 62 Newfield 58 +0.2
Longwood 54 Southampton 66 +0.1
Harborfields 59 Connetquot 54 +0.1
Smithtown East 72 Floyd 44 +0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
86-097.8%0131224292092008,674
75-139.8001312242920920051,662
64-20.20002719302613300129,823
53-3Out0001721322511200172,881
42-4Out0014153032163129,025
31-5Out00215414251,976
20-6Out009908,673
Total:5.3%000001123458810121211986552,714
Games Above .500
Chance Will Make Playoffs