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
Detroit 17 Tampa Bay 38 -1.3
Arizona 38 Cleveland 24 -0.3
Oakland 16 Jacksonville 20 -0.2
LA Chargers 10 Minnesota 39 -0.2
New Orleans 34 Indianapolis 7 -0.1
Green Bay 21 Chicago 13 -0.1
San Francisco 22 Atlanta 29 +0.1
Kansas City 23 Denver 3 -0.1
Dallas 44 LA Rams 21 +0.1
Carolina 24 Seattle 30 -0.1
NY Giants 36 Miami 20 -0.1
Washington 27 Philadelphia 37 +0.0
Tennessee 21 Houston 24 +0.0
Week of 12/22100.0*Lottery seed
Tampa Bay 20 Houston 23 +1.2
Chicago 3 Kansas City 26 -0.2
NY Jets 16 Pittsburgh 10 -0.1
Tennessee 28 New Orleans 38 -0.1
Denver 27 Detroit 17 +0.1
Cleveland 15 Baltimore 31 -0.1
Indianapolis 38 Carolina 6 +0.1
San Francisco 34 LA Rams 31 -0.0
Philadelphia 17 Dallas 9 +0.0
Week of 12/29100.0*Lottery seed
Tampa Bay 22 Atlanta 28 +3.0
Minnesota 19 Chicago 21 +0.5
Jacksonville 38 Indianapolis 20 -0.3
Cincinnati 33 Cleveland 23 -0.3
Denver 16 Oakland 15 -0.1
Dallas 47 Washington 16 +0.1
Games Above .500
Chance Will Make Playoffs