How are these numbers calculated?

Big Games

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

Week of 2/12100.0*Chance in playoffs100.0*Average seed
Black 1 Red 9 Out
-0.3
Green 3 Light Blue 10 +0.1
Week of 2/19100.0*Chance in playoffs100.0*Average seed
Black 1 Gray 7 -0.1
If winner is:HomeAway
Week of 2/26100.0*Chance in playoffs100.0*Average seed
Green vs Black-0.5+0.5

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678Count
21-0Out10019,246,287
00-1Out10019,245,201
Total:Out505038,491,488
Games Above .500
Chance Will Make Playoffs