Cleveland Browns Playoff Chances 2011 50/50

Lost to Pittsburgh 9-13, lottery seed up 0.6 to 28.5
4-12-0   .250

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

Week of 12/15100.0*Lottery seed
Arizona 20 Cleveland 17 +1.5
Houston 13 Carolina 28 +0.2
Atlanta 41 Jacksonville 14 -0.2
Tampa Bay 15 Dallas 31 -0.2
NY Giants 10 Washington 23 +0.1
Kansas City 19 Green Bay 14 +0.1
Philadelphia 45 NY Jets 19 +0.1
Chicago 14 Seattle 38 +0.0
Week of 12/22100.0*Lottery seed
Baltimore 20 Cleveland 14 +1.0
Tennessee 23 Jacksonville 17 -0.2
New England 27 Miami 24 -0.1
Buffalo 40 Denver 14 +0.1
Washington 26 Minnesota 33 -0.1
Carolina 48 Tampa Bay 16 -0.1
Week of 1/1100.0*Lottery seed
Cleveland 9 Pittsburgh 13 +0.9
Jacksonville 19 Indianapolis 13 +0.3
Atlanta 45 Tampa Bay 24 -0.3
Philadelphia 34 Washington 10 -0.1
Minnesota 13 Chicago 17 -0.1
Miami 19 NY Jets 17 +0.1
Games Above .500
Chance Will Make Playoffs