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
Fabian 225.85 Chay 219.2 -14.6
-0.4
Mason 204.8 Richard 221.2 +3.7
+0.1
Michael 149.45 Joe 156.05 -3.5
-0.1
Trevor 260.85 Ryan 259.1 +0.4
+0.1
Travis 271.3 Andrew 179.05 -0.0
If winner is:HomeTieAway
Week of 2/18100.0*Chance in playoffs100.0*Average seed
Trevor vs Chay-18.2-14.6+19.2
-0.5-0.4+0.5
Mason vs Joe+3.8+8.9-4.4
+0.0+0.2-0.0
Travis vs Fabian-6.5+5.6+6.1
-0.1+0.1+0.1
Richard vs Andrew+1.5+1.7-1.6
+0.1+0.1-0.1
Michael vs Ryan+0.5+0.3-0.5
+0.1+0.0-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678910Count
243-0-0In44562,470,882
232-0-189.1%1079100509,292
222-1-086.79771317,404,008
1-0-249.0493911035,266
211-1-139.740431611,018,611
0-0-36.363141183792
201-2-030.430462227,400,413
0-1-24.442340275035,293
190-2-12.22153735100509,966
180-3-00.81930431702,474,217
Total:55.1%847231372021,858,740
Games Above .500
Chance Will Make Playoffs