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 -9.0
-0.2
Madison 0 Omaha 0 +7.7
+0.1
Fort Lauderdale 2 Madison 2 +0.6
Week of 10/17100.0*Chance in playoffs100.0*Average seed
Greenville 1 Omaha 2 -27.0
-0.3
Orlando II 1 Richmond 3 +20.7
+0.3
Richmond 0 South Georgia 1 -17.1
-0.3
Madison 0 North Texas 1 -1.3
-0.1
Chattanooga 1 Madison 1 +0.5
If winner is:HomeDrawAway
Week of 10/24100.0*Chance in playoffs100.0*Average seed
Richmond vs ChattanoogaIn-24.1-57.5
+0.4-0.1-0.9
Omaha vs Fort Lauderdale-11.8+12.9+23.2
-0.1+0.1+0.3
North Texas vs South Georgia-1.7+1.9+1.9
-0.1+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
291-0-0In10027,621,613,593
270-1-041.0%415912,804,970,351
260-0-17.68484511,357,496,594
Total:65.1%65251051,784,080,538
Points
Chance Will Make Playoffs