How are these numbers calculated?

Big Games

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

Thursday100.0*Average seed
MEM 109 HOU 129 +0.2
LAL 100 MIN 110 +0.1
LAL 100 LAC 126 +0.1
CLE 80 HOU 116 +0.1
OKC 119 LAL 94 +0.1
GSW 140 HOU 103 -0.1
If winner is:HomeAway
Saturday100.0*Average seed
SAC vs HOU-0.1+0.0

What If

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

100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112131415Count
48-49In100828,832*
471-2In1000459,653
460-3In5941118,074
Total:In9731,406,559

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs