How are these numbers calculated?

Big Games

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

Week of 10/25100.0*Chance in playoffs100.0*Promoted100.0*Average seed
Sacred Heart Sa 0 SAF U15B Premie 7 -1.8
-1.8
SSA Savannah Un 3 Hinesville Socc 1 -0.1
Week of 11/1100.0*Chance in playoffs100.0*Promoted100.0*Average seed
SSA Chelsea Sou 3 SSA Savannah Un 4 -4.3
-4.3
-0.4
Hinesville Socc 4 SAF U15B Premie 3 In
Yes
Points
Chance Will Make Playoffs