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
San Francisco 22 Atlanta 29 +0.3
Oakland 16 Jacksonville 20 +0.2
Baltimore 42 NY Jets 21 +0.2
Arizona 38 Cleveland 24 +0.2
Detroit 17 Tampa Bay 38 -0.1
Carolina 24 Seattle 30 -0.1
LA Chargers 10 Minnesota 39 -0.1
NY Giants 36 Miami 20 -0.0
Washington 27 Philadelphia 37 -0.0
New Orleans 34 Indianapolis 7 -0.0
Kansas City 23 Denver 3 -0.0
Week of 12/22100.0*Lottery seed
NY Jets 16 Pittsburgh 10 -1.5
Seattle 13 Arizona 27 +0.4
LA Chargers 17 Oakland 24 -0.3
Miami 38 Cincinnati 35 (ot)-0.1
Indianapolis 38 Carolina 6 -0.1
Tennessee 28 New Orleans 38 -0.1
Tampa Bay 20 Houston 23 +0.1
Chicago 3 Kansas City 26 +0.0
Denver 27 Detroit 17 +0.0
Washington 35 NY Giants 41 -0.0
Atlanta 24 Jacksonville 12 -0.0
Week of 12/29100.0*Lottery seed
Buffalo 6 NY Jets 13 -1.8
LA Rams 31 Arizona 24 -0.2
Carolina 10 New Orleans 42 -0.2
Kansas City 31 LA Chargers 21 -0.2
Jacksonville 38 Indianapolis 20 +0.1
Tampa Bay 22 Atlanta 28 +0.1
Denver 16 Oakland 15 +0.1
Games Above .500
Chance Will Make Playoffs