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
Copiague 54 Commack 63 -6.9
-1.6
Mt. Sinai 68 Sachem East 58 +0.9
+0.1
ESM 47 Smithtown East 57 -0.8
-0.1
Lindenhurst 77 PatchMed 81 -0.5
-0.1
Comsewogue 64 Lindenhurst 65 +0.4
+0.1
Bellport 61 Riverhead 64 +0.3
Centereach 56 PatchMed 62 -0.3
Smithtown East 72 Floyd 44 -0.3
-0.1
Northport 75 HHH West 69 -0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
116-0In1823322492008,798
105-1In01412242921920051,660
94-2In002922302410200130,002
83-399.4%001618302714410172,271
72-468.10031124302192000129,590
61-52.100292230241030051,696
50-6Out0028212925113008,697
Total:81.6%000112346878101110864321100000552,714
Games Above .500
Chance Will Make Playoffs