St. Louis Cardinals Playoff Chances 2013 50/50

Beat Cubs 4-0, average seed up 0.2 to 1
97-65   .599

How are these numbers calculated?

Big Games

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

Friday100.0*Average seed
Cardinals 7 Cubs 0 +0.2
Braves 1 Phillies 0 -0.2
Saturday100.0*Average seed
Braves 4 Phillies 5 +0.2
Cardinals 6 Cubs 2 +0.2
Sunday100.0*Average seed
Cardinals 4 Cubs 0 +0.3
Games Above .500
Chance Will Make Playoffs