How are these numbers calculated?

Big Games

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

Week of 10/10100.0*Chance in playoffs100.0*Average seed
North Texas 2 Richmond 1 -15.1
-0.3
Madison 0 Omaha 0 +8.9
+0.1
Fort Lauderdale 2 Madison 2 +1.0
+0.0
Week of 10/17100.0*Chance in playoffs100.0*Average seed
Orlando II 1 Richmond 3 +30.3
+0.7
Richmond 0 South Georgia 1 -17.8
-0.3
Greenville 1 Omaha 2 -17.1
-0.2
Madison 0 North Texas 1 -2.5
-0.2
Chattanooga 1 Madison 1 +1.1
+0.0
South Georgia 4 New England II 0 +0.0
If winner is:HomeDrawAway
Week of 10/24100.0*Chance in playoffs100.0*Average seed
Richmond vs ChattanoogaIn+0.5-38.4
+0.5+0.1-0.5
Omaha vs Fort Lauderdale-24.3+0.5+23.9
-0.3-0.0+0.3
North Texas vs South Georgia-8.8+5.3+5.3
-0.2+0.1+0.1

What If

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

100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs1234567891011Count
291-0-0In1006,375,075,840
270-1-062.4%62384,188,631,748
260-0-123.52353236,375,195,062
Total:61.9%6229916,938,902,650
Points
Chance Will Make Playoffs