New York Yankees Playoff Chances 2014-2 50/50

Beating Orioles 2-0 (Bot 5th), playoff odds unchanged at 15%
61-58-0   .513

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
Yankees 1 Blue Jays 3 -2.9
-0.3

What If

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

Games Above .500
Chance Will Make Playoffs