How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 1/31100.0*Chance in playoffs100.0*Average seed
Loudoun County/John Champe 6 Flint Hill 13 +20.4
+1.7
McLean 5 Briar Woods 8 +5.3
+0.1
Kettle Run/Liberty 2 Loudoun Valley/Woodgrove 3 +5.3
+0.1
Patriot 10 Battlefield 7 -5.0
-0.2
Stone Bridge 4 Langley 2 +0.2
Broad Run 5 Dominion/Potomac Falls 4 +0.1
Week of 2/7100.0*Chance in playoffs100.0*Average seed
Flint Hill 8 Kettle Run/Liberty 9 -34.2
-1.4
Tuscarora/Westfield 12 Loudoun Valley/Woodgrove 2 -16.5
-0.3
McLean 1 Langley 3 +8.4
+0.2
Patriot 5 Yorktown 1 -0.2
Dominion/Potomac Falls 9 Independence/Rock Ridge 5 -0.2
Week of 2/14None

What If

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

100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678910111213141516171819202122Count
90-0-0Out100199,371,848
Total:Out100199,371,848
Games Above .500
Chance Will Make Playoffs