How are these numbers calculated?

Big Games

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

Week of 11/30100.0*Chance in playoffs100.0*Average seed
Auntie Angels B 58 Suck my Seattle 118 -7.6
-0.1
PDX RiverMadden 103 Fear Boners 90 +5.2
+0.1
Chad Velcoros 81 You may need an 79 -3.7
-0.1
Deflate These B 56 Seatown Hawk Sq 107 -0.8
Week of 12/7100.0*Chance in playoffs100.0*Average seed
You may need an 106 PDX RiverMadden 96 -20.6
-0.6
Suck my Seattle 101 Deflate These B 112 +4.5
+0.1
Seatown Hawk Sq 135 Chad Velcoros 106 +2.8
+0.1
If winner is:HomeTieAway
Week of 12/14100.0*Chance in playoffs100.0*Average seed
PDX RiverMadden vs Seatown Hawk Sq+33.3+17.0-19.1
+0.5+0.3-0.3
Chad Velcoros vs Suck my Seattle+20.9+9.9-16.1
-0.0+0.3+0.0
Deflate These B vs Fear Boners-0.2-0.3+2.0
-0.0-0.0+0.1

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678Count
81-0-059.6%2584045,525,832
7.50-0-143.34357630,415
70-1-07.27662779,880,761
Total:26.3%1265717126,037,008
Games Above .500
Chance Will Make Playoffs