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
1313-0In10030,680
1212-1In1000130,755
1111-2In9820783,737
1010-3In8614002,874,103
99-4100.0%50419107,177,133
88-597.6934381620012,920,907
77-651.9031634321420017,227,060
66-72.2002143234163017,228,521
55-80.0002163834912,926,238
44-9Out01941507,178,593
33-10Out0014862,875,505
22-11Out0298784,508
11-12Out0100131,229
00-13Out10030,451
Total:40.0%1010101010101010101082,299,420
Games Above .500
Chance Will Make Playoffs