How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 9/14100.0*Chance in playoffs100.0*Average seed
Dick vs McDonough-10.4+10.4
-0.7+0.7
If winner is:HomeAway
Week of 9/21100.0*Chance in playoffs100.0*Average seed
McDonough vs Nelson+10.4-10.4
+0.7-0.7

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
1313-0In10010,438
1212-1In100045,324
1111-2In9820269,844
1010-3In861400987,506
99-4100.0%50419102,469,270
88-597.693438162004,445,625
77-651.903163432142005,919,531
66-72.100214323416305,922,502
55-80.000216383494,442,273
44-9Out01941502,467,041
33-10Out001486986,224
22-11Out0298269,912
11-12Out010044,828
00-13Out10010,422
Total:40.0%1010101010101010101028,290,740
Games Above .500
Chance Will Make Playoffs