How are these numbers calculated?

Big Games

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

Week of 2/8100.0*Average seed
Potomac School/Lab 6 McLean 4 +1.8
South Lakes 2 Madison 1 -0.5
Patriot 2 Battlefield 9 +0.1
Freedom 2 Oakton 4 -0.1
Broad Run 3 Riverside 3 -0.1
Week of 2/22None

What If

Chances based on how well the Potomac School/Lab finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance inPresChance will finish regular season at seed
TPW-L-TplayoffsTrophy1234567891011121314151617181920212223Count
80-0-0OutNo1003,233,797,994
Total:OutNo1003,233,797,994
Games Above .500
Chance Will Make Playoffs