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
Longwood 54 Southampton 66 -4.5
-1.2
Mt. Sinai 68 Sachem East 58 +0.3
ESM 47 Smithtown East 57 -0.3
-0.1
Sachem North 48 Pierson 38 -0.1
Harborfields 59 Connetquot 54 +0.1
Sachem North 53 BBP 62 +0.1
Smithtown East 72 Floyd 44 +0.1
Lindenhurst 77 PatchMed 81 +0.1
Comsewogue 64 Lindenhurst 65 -0.1
Centereach 56 PatchMed 62 +0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
76-095.4%0292128231241008,724
65-18.1001717282715410051,560
54-20.00003122630207100129,878
43-3Out0031328321950173,032
32-4Out0019294120129,255
21-5Out003257151,658
10-6Out03968,607
Total:2.3%000000123347891112131413552,714
Games Above .500
Chance Will Make Playoffs