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 +13.1
+1.0
Maria 173.46 Matthew 111.2 -0.6
Lindsey 106.22 J Z 102.2 +0.4
Kyle 110.44 Amanda 130.7 +0.4
Jacque 124.16 Josh 125.3 -0.3
If winner is:HomeAway
Week of 10/6100.0*Chance in playoffs100.0*Average seed
Chad vs Amanda+12.7-12.7
+0.9-0.9
Jacob vs Margaret+0.7-0.7
Kevin vs J Z+0.6-0.6
Kyle vs Jacque-0.6+0.6
Maria vs Josh-0.1+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
118-0In964038,988
107-1In762310299,340
96-2In334718201,042,880
85-3100.0%32240277102,087,334
74-491.501725362371002,609,256
63-523.6004193428122002,085,745
52-60.10021334351421,045,741
41-7Out002204829299,306
30-8Out01217838,886
Total:66.5%7111313121110865319,547,476
Games Above .500
Chance Will Make Playoffs