How are these numbers calculated?

Big Games

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

Week of 10/6100.0*Average seed
GWK Griquas 37 MTN Golden Lion 21 -0.2
Toyota Free Sta 30 Sharks 37 -0.1
Week of 10/12100.0*Average seed
Sharks 42 GWK Griquas 3 -0.0
Week of 10/20100.0*Average seed
MTN Golden Lion 10 DHL Western Pro 27 -0.7

What If

Chances based on how well the MTN Golden Lion finish out the regular season.   Explain

If finish:Chance inChance will finish regular season at seedRelegated to
TPW-D-Lplayoffs123456First DivisionCount
Games Above .500
Chance Will Make Playoffs