How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Tuesday100.0*Average seed
Princes 2 Tsunamis 4 +0.5
Nannies 0 Pixies 3 -0.3
Islanders 5 Crabs 0 -0.0
Wednesday100.0*Average seed
Snipers 6 Pixies 4 +0.5
Bears 1 Tsunamis 0 -0.4
Cats 0 Princes 2 +0.2
Islanders 0 Dynasty 2 +0.1
Thursday100.0*Average seed
Tsunamis 2 Turtles 1 (ot)+0.3
Hipsters 1 Pixies 3 -0.2
Nannies 0 Islanders 6 -0.1
Squares 1 Cats 2 -0.1
Points
Chance Will Make Playoffs