Kansas City Royals Playoff Chances 2014-7 50/50

Beat Red Sox 7-1, playoff odds unchanged at 72.3%
81-66   .551

How are these numbers calculated?

Big Games

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

Friday100.0*Chance in playoffs100.0*Average seed
Royals 1 Indians 6 -5.0
-0.3
White Sox 1 Tigers 7 -1.4
-0.1
Mariners 3 Nationals 8 +1.3
Blue Jays 3 Yankees 6 -0.2
Saturday100.0*Chance in playoffs100.0*Average seed
Royals 2 Indians 3 -5.8
-0.3
White Sox 4 Tigers 8 -1.5
-0.1
Mariners 1 Nationals 3 +1.5
White Sox 6 Tigers 3 +1.4
+0.1
Blue Jays 2 Yankees 0 +0.5
Angels 2 Athletics 0 +0.2

What If

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

Games Above .500
Chance Will Make Playoffs