How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Wednesday, 12/3100.0*Chance in playoffs100.0*Average seed
Gushue 4 Howard 10 +16.1
+0.5
Howard 7 Morris 6 +15.4
+0.7
Jacobs 8 Cotter 4 -0.7
Koe 2 McEwen 8 +0.5
Thursday, 12/4100.0*Chance in playoffs100.0*Average seed
McEwen 3 Howard 4 +3.9
+0.8
Cotter 7 Koe 2 +1.4
+0.1
Morris 6 Gushue 8 +1.2
Jacobs 4 Gushue 5 +1.2
+0.1
Jacobs 7 Howard 4 -0.7
-0.1
Cotter 4 McEwen 9 -0.0
Friday, 12/5100.0*Chance in playoffs100.0*Average seed
McEwen 5 Jacobs 7 -3.6
Gushue 5 Cotter 4 +0.3
If winner is:HomeAway
Howard vs KoeIn-19.9
+0.4-1.0
Howard vs Cotter+2.6-17.5
+0.1-0.9
Koe vs Gushue-7.0+5.0
-0.3+0.2
McEwen vs Morris-2.2+6.8
-0.0+0.1
Morris vs Jacobs+5.7-1.8
+0.3-0.1

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567Count
52-0In10018,959,007
41-184.8%3438141511,265,460
30-214.621233521,262,137
Total:91.1%721457231,486,604
Games Above .500
Chance Will Make Playoffs