How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Chance in playoffs100.0*Average seed
Rob 122.42 Michael 77.82 -0.2
Maria 62.74 Craig 114.58 In
Ross 105.76 Iris 66.5 In
+0.3
Kevin V 82 Matt 97.76 -0.1
+0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Maria 88.22 Ross 108.72 +0.2
Kevin V 92.4 Iris 42.36 -0.2
Nick 73.58 Matt 115.2 -0.1
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Kevin V vs Nick-0.2+0.2
Justin vs Ross-0.2+0.2

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
131-0In10010,284,853
120-1In534710,287,487
Total:In762420,572,340
Games Above .500
Chance Will Make Playoffs