Oakland Athletics Playoff Chances 2014-7 50/50

Losing to Mariners 0-1 (Top 5th), playoff odds unchanged at 73.1%
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
Angels 4 Athletics 0 -0.9
-0.3
White Sox 1 Tigers 7 -0.3
Mariners 3 Nationals 8 +0.3
Blue Jays 3 Yankees 6 -0.1
Royals 1 Indians 6 +0.1
Saturday100.0*Chance in playoffs100.0*Average seed
Angels 2 Athletics 0 -1.2
-0.3
Mariners 1 Nationals 3 +0.3
White Sox 4 Tigers 8 -0.3
White Sox 6 Tigers 3 +0.3
Blue Jays 2 Yankees 0 +0.2
Royals 2 Indians 3 +0.1

What If

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

Games Above .500
Chance Will Make Playoffs