How are these numbers calculated?

Big Games

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

Week of 4/27100.0*Chance in playoffs100.0*Average seed
Anderson 7 van Barneveld 4 -27.0
-1.0
Lewis 0 van Gerwen 7 +4.3
+0.2
Wade 7 Lewis 4 +4.1
+0.1
Taylor 3 Wright 7 +3.3
+0.1
Chisnall 6 van Gerwen 6 +0.6
+0.0
If winner is:HomeDrawAway
Week of 5/4100.0*Chance in playoffs100.0*Average seed
van Barneveld vs Chisnall+25.8-1.7-24.9
+1.0+0.1-1.1
van Gerwen vs Taylor+9.7+0.0-9.7
+0.2-0.0-0.2
Wright vs Lewis+3.8+1.3-4.4
+0.2+0.0-0.2
Wade vs Anderson+3.5-1.1-3.0

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs12345678910EliminatedCount
182-0-088.1%365212No68,424,113
171-1-059.91149391No68,282,672
161-0-113.211350325No136,620,906
0-2-012.701254303No17,048,490
150-1-10.511247355No68,273,356
140-0-2Out114544No68,415,143
Total:28.5%8212821158No427,064,680
Games Above .500
Chance Will Make Playoffs