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 +0.5
+0.0
Week of 2/19100.0*Chance in playoffs100.0*Average seed
Light Blue 2 Red 1 -0.3
-0.5
Black 1 Gray 7 -0.1
Orange 1 White 7 +0.0
If winner is:HomeAway
Week of 2/26100.0*Chance in playoffs100.0*Average seed
Orange vs Red-4.2In
-0.6+0.1
Gray vs White-3.2In
Orange vs Burgundy-0.4In
-0.0+0.1

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678Count
101-0In100103,788,371
80-194.9%3461521,334,093
Total:99.1%89101125,122,464
Games Above .500
Chance Will Make Playoffs