How are these numbers calculated?

Big Games

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

Week of 5/12100.0*Chance in playoffs100.0*Average seed
Fluminense 2 Santa Fe 1 +12.0
Junior Barranquilla 1 River Plate 1 +0.8
Week of 5/18100.0*Chance in playoffs100.0*Average seed
Fluminense 1 Junior Barranquilla 2 -18.3
River Plate 2 Santa Fe 1 -0.3
Week of 5/25100.0*Chance in playoffs100.0*Average seed
River Plate 1 Fluminense 3 In
Santa Fe 0 Junior Barranquilla 0 In

What If

Chances based on how well the Fluminense finish out the regular season.   Explain

If finish:Chance inChance will finish regular season at seed
Chance Will Make Playoffs