How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

If winner is:HomeTieAway
Wednesday, 4/10100.0*Average seed
SAL vs EC+0.2-0.0-0.2
EC vs MCN-0.2+0.0+0.2
If winner is:HomeTieAway
Thursday, 4/11100.0*Average seed
MEL vs SPA-1.2-1.2+1.3

What If

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

100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs1234567891011Count
101-0-0In76246,265,182
90-0-1In2674329,285
80-1-0In24766,259,465
Total:In3712123912,853,932
Games Above .500
Chance Will Make Playoffs