How are these numbers calculated?

Big Games

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

Week of 3/23100.0*Chance in playoffs100.0*Average seed
Soviet 3 East 8 +10.2
+1.0
Mother 9 Britney 9 -1.9
-0.2
Timmins 15 Red 2 -0.6
+0.1
Illegal 0 Egos 1 +0.0
If winner is:HomeTieAway
Week of 3/30100.0*Chance in playoffs100.0*Average seed
Mother vs RedOut-15.0+17.8
-0.4+0.0+0.4
Timmins vs Soviet+14.9OutOut
+0.1-0.2-0.2
Illegal vs EastOutOut+8.0
-0.9-0.4+0.4

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678Count
91-0-023.0%23314623,243,581
80-0-1Out1002,956,498
70-1-0Out46549,304,138
Total:15.1%1520501435,504,217
Games Above .500
Chance Will Make Playoffs