How are these numbers calculated?

Big Games

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

Week of 9/10100.0*Chance in playoffs100.0*Average seed
Joe 78.04 Bill 68.84 +10.7
+0.9
Jason 134.24 Justin 80.94 +0.1
If winner is:HomeAway
Week of 9/17100.0*Chance in playoffs100.0*Average seed
Jason vs Joe-10.7+10.7
-0.9+0.9

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
1312-0In1002,533
1211-1In100016,028
1110-2In973088,028
109-3In811810292,765
98-4In404415200658,318
87-599.9%523362681001,054,213
76-684.0016193128133001,231,780
65-713.9002112631217101,055,269
54-80.000172436256659,219
43-9Out02134243292,791
32-10Out01168387,836
21-11Out029815,968
10-12Out01002,396
Total:60.3%12111010998876655,457,144
Games Above .500
Chance Will Make Playoffs