Detroit Lions Playoff Chances 2015-1 50/50

Beat Chicago 3-1, lottery seed down 1.8 to 21.5
6-10-0   .375

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 12/20100.0*Lottery seed
New Orleans 12 Detroit 24 -2.6
Oakland 1 Green Bay 4 -0.2
Seattle 12 Cleveland 20 +0.2
Philadelphia 1 Washington 4 +0.2
Miami 12 San Francisco 20 -0.1
Arizona 12 Green Bay 27 -0.1
New England 12 Tennessee 20 +0.1
Arizona 12 Pittsburgh 20 +0.1
Jacksonville 12 Atlanta 20 +0.0
Indianapolis 1 Houston 4 -0.0
Week of 1/3100.0*Lottery seed
Chicago 1 Detroit 3 -1.7
Miami 1 New England 3 -0.2
Denver 1 San Diego 50 -0.1
Minnesota 1 Houston 3 +0.1
Buffalo 1 NY Jets 3 +0.1
Indianapolis 1 Tennessee 3 +0.1
If winner is:HomeTieAway
San Francisco vs St. Louis-0.5-0.5+0.5

What If

100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L-T1234567891011121314151617181920212223242526272829303132
60-0-05050
Total:5050
Games Above .500
Chance Will Make Playoffs