How are these numbers calculated?

Big Games

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

Week of 2/11100.0*Chance in playoffs100.0*Average seed
Michael 149.45 Joe 156.05 +4.7
+0.4
Fabian 225.85 Chay 219.2 +3.1
+0.0
Mason 204.8 Richard 221.2 +1.0
+0.1
Travis 271.3 Andrew 179.05 +0.1
-0.0
If winner is:HomeTieAway
Week of 2/18100.0*Chance in playoffs100.0*Average seed
Mason vs Joe-15.3-11.8+13.4
-0.7-0.3+0.6
Trevor vs Chay+3.0+0.9-14.7
+0.0+0.0-0.2
Travis vs Fabian-3.8+1.0+1.1
-0.3+0.0+0.1
Richard vs Andrew+0.2+0.3-0.2
+0.1+0.1-0.1
Michael vs Ryan+0.2+0.1-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678910Count
223-0-072.9%17227010,812,422
212-0-132.1325981,979,306
202-1-026.0266113125,146,771
1-0-23.74504150121,020
191-1-12.2236441713,069,791
0-0-3Out743371202,471
181-2-01.012341296019,441,718
0-1-2Out3214727193,906
170-2-1Out19354961,184,664
160-3-0Out031757235,010,551
Total:22.9%0233719117266,862,620
Games Above .500
Chance Will Make Playoffs