Detroit Tigers Playoff Chances 2014-2 50/50

Losing to Pirates 1-4 (Bot 4th), playoff odds unchanged at 47.6%
63-55-0   .534

How are these numbers calculated?

Big Games

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

Sunday100.0*Chance in playoffs100.0*Average seed
Tigers 4 Marlins 8 -2.5
-0.3
Phillies 5 Twins 1 +0.3

What If

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

Games Above .500
Chance Will Make Playoffs