Pittsburgh Pirates Playoff Chances 2012 50/50

Lost to Atlanta 0-4, lottery seed unchanged at 18
79-83   .488

How are these numbers calculated?

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Monday100.0*Lottery seed
Pittsburgh 2 Atlanta 1 -0.1
Milwaukee 5 San Diego 3 -0.1
Tuesday100.0*Lottery seed
Pittsburgh 5 Atlanta 1 -0.1
Arizona 5 Colorado 3 +0.1
WednesdayNone
Games Above .500
Chance Will Make Playoffs