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
Sachem North 53 BBP 62 -10.3
-1.3
Sachem North 48 Pierson 38 +6.2
+1.1
Comsewogue 64 Lindenhurst 65 +1.4
ESM 47 Smithtown East 57 -1.0
-0.1
Centereach 56 PatchMed 62 -0.9
Mt. Sinai 68 Sachem East 58 +0.6
Central Islip 62 Newfield 58 +0.6
Lindenhurst 77 PatchMed 81 -0.4
+0.0
Smithtown East 72 Floyd 44 -0.3
+0.1
Bellport 61 Riverhead 64 +0.1
Copiague 54 Commack 63 +0.1
Longwood 54 Southampton 66 +0.1
Harborfields 59 Connetquot 54 +0.0

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
85-096.9%0182231241130079,862
74-147.9001415283017400390,657
63-21.200172437246000686,048
52-30.000192736215100536,457
41-4Out0172334259200183,359
30-5Out029253523622,821
Total:14.4%000124791217171385311001,899,204
Games Above .500
Chance Will Make Playoffs