How are these numbers calculated?

Big Games

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

Week of 2/11100.0*Average seed
Metro 1 Southern Maryland 3 +0.1
Potomac 3 Piedmont 5 +0.1
Reston 2 Piedmont 6 +0.1
If winner is:HomeTieAway
Week of 2/25100.0*Average seed
Piedmont vs Metro+0.3-0.0-0.3
Piedmont vs Metro+0.3-0.0-0.3

What If

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

100100100100100100100100
If finish:Chance inPresChance will finish regular season at seed
TPW-OTLTplayoffsTrophy12345678Count
18-19OutNo10013,916,844*
171-010OutNo366417,758,532
0-002OutNo100707,622
15-16OutNo10013,917,338*
Total:OutNo445646,300,336

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs