How are these numbers calculated?

Big Games

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

Week of 12/6100.0*Chance in playoffs100.0*Average seed
Godfavre 90.34 Mushroom Stampe 50.2 -11.1
-0.9
Fourth and Schl 87.48 Hero to Zero 95.74 -4.5
-0.1
REEDunkulious 91.24 Shake N Bake 110.42 -2.5
+0.1
Amber Llamas 70.58 Ballz Deep 94.9 +2.2
GIVE ME A BREAK 59.6 KP 90.24 +0.2
+0.2
If winner is:HomeAway
Week of 12/13100.0*Chance in playoffs100.0*Average seed
REEDunkulious vs Mushroom Stampe-1.5+1.5
GIVE ME A BREAK vs Hero to Zero-0.3+0.3
Fourth and Schl vs Ballz Deep+0.2-0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
61-0Out2550259,553,839
50-1Out2550259,552,322
Total:Out13251212251219,106,161
Games Above .500
Chance Will Make Playoffs