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 48 Pierson 38 +0.3
Center Moriches 81 Pierson 50 +0.1
Mattituck 87 Greenport 45 +0.1

What If

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

100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516171819202122232425262728Count
33-04.2%4791769,240
22-1Out1981207,169
11-2Out397207,320
00-3Out10068,985
Total:0.5%11881552,714
Games Above .500
Chance Will Make Playoffs