How are these numbers calculated?

Big Games

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

Week of 4/1100.0*Average seed
IWG 3 Road Runner 1 +0.3
Week of 4/8100.0*Average seed
Niner 5 SWE 2 -0.1
Road Runner 0 Raintree 2 +0.1
Week of 4/15100.0*Average seed
IWG 2 Raintree 1 +0.4
Niner 2 Road Runner 3 +0.1
Points
Chance Will Win Championship