How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 10/5100.0*Chance in playoffs100.0*Top seed100.0*Average seed
Duffman Shandy vs 1-6 I Like Twix-11.5+11.5
-3.3+3.3
-0.9+0.9
Ronald Ollie's vs No1 Harsent+0.3-0.3
+0.5-0.5
Leon's Deep Sle vs Davy Potters Fa+0.2-0.2
-0.2+0.2
Liverpool Lemurs vs Shit Shovelers+0.2-0.2
-0.8+0.8
San Franciscan vs Commando Clowns-0.1+0.1
Los Amigos Kidn vs Dances with Tot+0.2-0.2

What If

Chances based on how well the 1-6 I Like Twix finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inTopChance will finish regular season at seed
TWW-Lplayoffsseed123456789101112Count
1210-0In99.1%9914,362
119-1In91.7928035,829
108-2In64.86531400162,170
97-3100.0%19.41943298100431,793
86-499.10.7172435247100756,206
75-551.1No00416313015300908,155
64-61.1No001824352471756,161
53-7OutNo017284321431,264
42-8OutNo0032770162,087
31-9OutNo059535,932
20-10OutNo01004,377
Total:50.3%6.3%6899999998873,688,336
Games Above .500
Chance Will Make Playoffs