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 10/13100.0*Lottery seed
Vancouver 1 Sporting KC 4 +0.6
DC United 1 FC Dallas 0 +0.1
DC United 1 Toronto FC 0 +0.0
RSL 4 New England 1 +0.0
Week of 10/21100.0*Lottery seed
Montreal 2 Toronto FC 0 +0.2
Minnesota 1 LA Galaxy 3 +0.1
LAFC 2 Vancouver 2 -0.0
Week of 10/28100.0*Lottery seed
Vancouver 2 Portland 1 -0.3
New England 1 Montreal 0 -0.2
Points
Chance Will Make Playoffs