How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 10/4100.0*Average seed
New England 1 Earthquakes 2 +0.1
Whitecaps 3 Real Salt Lake 0 +0.1
Week of 10/12100.0*Average seed
Whitecaps 2 DC United 1 +0.3
New England 0 Crew 3 +0.3
FC Dallas 2 Whitecaps 0 -0.2
Union 1 Toronto FC 1 -0.1
Week of 10/19100.0*Average seed
Whitecaps 1 Rapids 2 -0.3
Toronto FC 2 New England 2 -0.1
Points
Chance Will Make Playoffs