How are these numbers calculated?

Big Games

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

Week of 9/29100.0*Chance in playoffs100.0*Average seed
Chad 138.68 Margaret 133.66 +6.4
+0.7
Kyle 110.44 Amanda 130.7 +1.3
+0.1
Maria 173.46 Matthew 111.2 -0.8
Jacque 124.16 Josh 125.3 -0.6
-0.0
Lindsey 106.22 J Z 102.2 +0.3
Jacob 148.66 Kevin 123.34 +0.1
-0.0
If winner is:HomeAway
Week of 10/6100.0*Chance in playoffs100.0*Average seed
Chad vs Amanda+1.5-9.6
+0.2-1.1
Jacob vs Margaret+0.5-0.5
Kevin vs J Z+0.6-0.4
Kyle vs Jacque-0.1+0.3
Lindsey vs Matthew+0.1-0.2
Maria vs Josh-0.0+0.1

What If

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

100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213Count
118-0In851501,362,040
107-1In5343405,242,264
96-2In1449316008,549,660
85-399.8%0103437163007,687,480
74-487.7002153734111004,140,271
63-523.90032146273001,362,472
52-60.300941401000264,321
41-7Out03264821127,303
30-8Out0330676,617
Total:93.5%1826191410742100028,642,428
Games Above .500
Chance Will Make Playoffs