How are these numbers calculated?

Big Games

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

Week of 4/20100.0*Chance in playoffs100.0*Average seed
van Gerwen 7 van Barneveld 2 -13.6
-0.5
Chisnall 7 Lewis 3 +6.1
+0.2
Chisnall 7 Taylor 2 +5.4
+0.2
Wright 7 Wade 3 -2.2
-0.1
Taylor 7 Anderson 4 +1.1
If winner is:HomeDrawAway
Week of 4/27100.0*Chance in playoffs100.0*Average seed
Anderson vs van Barneveld-28.8-2.4+30.0
-0.9-0.0+0.9
Lewis vs van Gerwen-6.3-1.5+3.2
-0.2-0.1+0.1
Wade vs Lewis+5.1+1.3-3.5
+0.2+0.0-0.1
Taylor vs Wright-4.3-1.6+4.0
-0.1-0.0+0.1
Chisnall vs van Gerwen-2.5-0.2+0.9
-0.2-0.0+0.1

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
203-0-0In056431No1,880,615,900
192-1-099.2%014652010No2,926,652,798
182-0-183.1135481610No6,095,678,758
1-2-084.513549141No1,509,466,734
171-1-141.5073443151No6,230,072,126
0-3-035.353047171No257,174,649
161-0-27.6073845100No6,372,360,834
0-2-16.3063846100No1,578,492,067
150-1-20.100944461No3,202,884,985
140-0-3Out0127513No2,157,031,029
Total:44.7%0518222320121No32,210,429,880
Games Above .500
Chance Will Make Playoffs