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
Kettle Run/Liberty 2 Loudoun Valley/Woodgrove 3 -20.8
-1.8
Loudoun County/John Champe 6 Flint Hill 13 -4.7
-0.1
McLean 5 Briar Woods 8 +3.7
+0.1
Patriot 10 Battlefield 7 -3.2
-0.2
Stone Bridge 4 Langley 2 +1.0
-0.1
Madison 2 Independence/Rock Ridge 5 +0.1
+0.3
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 In
+2.0
Tuscarora/Westfield 12 Loudoun Valley/Woodgrove 2 -0.3
-0.3
McLean 1 Langley 3 +0.3
Chantilly 6 Freedom 3 +0.2
Week of 2/14None

What If

Chances based on how well the Kettle Run/Liberty finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678910111213141516171819202122Count
100-0-0In100199,371,848
Total:In100199,371,848
Games Above .500
Chance Will Make Playoffs