Cleveland Browns Playoff Chances 2013 50/50

Lost to Pittsburgh 7-20, lottery seed up 0.9 to 29
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 12/12100.0*Lottery seed
Cleveland 31 Chicago 38 +1.7
Oakland 31 Kansas City 56 -0.2
Tennessee 34 Arizona 37 -0.1
Tampa Bay 14 San Francisco 33 -0.1
Pittsburgh 30 Cincinnati 20 +0.1
NY Giants 0 Seattle 23 -0.1
Dallas 36 Green Bay 37 -0.1
Indianapolis 25 Houston 3 -0.1
Detroit 16 Baltimore 18 -0.1
Minnesota 48 Philadelphia 30 +0.0
Atlanta 27 Washington 26 +0.0
Week of 12/22100.0*Lottery seed
NY Jets 24 Cleveland 13 +1.7
Cincinnati 42 Minnesota 14 -0.2
San Diego 26 Oakland 13 -0.2
St. Louis 23 Tampa Bay 13 -0.2
Philadelphia 54 Chicago 11 +0.2
San Francisco 34 Atlanta 24 -0.1
Buffalo 19 Miami 0 +0.1
Washington 23 Dallas 24 -0.1
Baltimore 7 New England 41 +0.1
Detroit 20 NY Giants 23 +0.1
Houston 13 Denver 37 -0.0
Jacksonville 16 Tennessee 20 +0.0
Week of 12/29100.0*Lottery seed
Pittsburgh 20 Cleveland 7 +1.3
Minnesota 14 Detroit 13 +0.2
Atlanta 20 Carolina 21 -0.2
Indianapolis 30 Jacksonville 10 -0.2
Miami 7 NY Jets 20 +0.1
Games Above .500
Chance Will Make Playoffs