How are these numbers calculated?

Big Games

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

Week of 10/23100.0*Chance in playoffs100.0*Average seed
Detroit 16 Atlanta 23 +14.9
+1.3
New Orleans 62 Indianapolis 7 -1.2
-0.1
Carolina 33 Washington 20 -0.3
Dallas 34 St. Louis 7 -0.2
-0.0
Tampa Bay 18 Chicago 24 +0.2
+0.0
Cleveland 6 Seattle 3 +0.1
+0.1
Minnesota 27 Green Bay 33 -0.1
Arizona 20 Pittsburgh 32 +0.1
+0.0
If winner is:HomeAway
Week of 10/30100.0*Chance in playoffs100.0*Average seed
Denver vs Detroit+4.5-2.2
+0.1-0.1
St. Louis vs New Orleans+3.5-0.8
+0.2-0.1
NY Giants vs Miami-0.4+1.1
-0.0+0.1
Buffalo vs Washington+0.5-0.8
+0.0-0.1
Philadelphia vs Dallas+0.6-0.6
Carolina vs Minnesota-0.5+0.7
-0.0+0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516Count
139-0In19572501,369
128-1In3335643014,012
117-299.3%08481617101060,710
106-383.1001321143515200144,770
95-433.301822336246100210,154
84-53.4010316313115300191,523
73-60.0001620332711200109,255
62-7Out01825362360038,362
51-8Out021536361007,425
40-9Out1838504625
Total:35.0%01884141715129642100778,205
Games Above .500
Chance Will Make Playoffs

Lottery

Ye of little faith, already thinking about next year. Here are the big games and what ifs for draft seeds.

Big Games

Week of 10/23100.0*Lottery seed
Detroit 16 Atlanta 23 -2.5
New Orleans 62 Indianapolis 7 +0.1
Tampa Bay 18 Chicago 24 -0.1
Dallas 34 St. Louis 7 +0.0
If winner is:HomeAway
Week of 10/30100.0*Lottery seed
St. Louis vs New Orleans-0.5+0.1
Denver vs Detroit-0.2+0.1
NY Giants vs Miami+0.0-0.1
Carolina vs Minnesota+0.0-0.1
San Francisco vs Cleveland-0.0+0.1
Tennessee vs Indianapolis+0.0-0.1

What If

100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L1234567891011121314151617181920212223242526272829303132
139-099524250
128-103171752440310
117-20017262215161182100
106-3000211129113925105100
95-400126021221019201241000
84-500100314122023191251000
73-60000013918232214720000
62-700261423251893000
51-8001513262918610
40-901625392440
Total:000134441431157887655432211000000