How are these numbers calculated?

Big Games

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

Week of 8/12100.0*Chance in playoffs100.0*Average seed
Nationals 401 Mets 277.5 +12.1
+0.4
Reds 261.5 Cubs 224.5 -4.7
-0.1
Phillies 302 Braves 202 -3.7
-0.2
Brewers 260.5 Pirates 295.5 -3.4
-0.1
Week of 8/19100.0*Chance in playoffs100.0*Average seed
Nationals 287 Braves 217 +9.8
+0.2
Reds 346.5 Pirates 262.5 -3.6
Phillies 268.5 Mets 321 +0.2
If winner is:HomeTieAway
Week of 8/26100.0*Chance in playoffs100.0*Average seed
Phillies vs Nationals-38.3InIn
-1.8+1.2+1.7
Pirates vs Cubs-12.2-12.2+12.7
-0.0-0.2+0.0
Brewers vs Reds-12.3+11.8+11.8
+0.0+0.2-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
141-0-0In75252,202,525
13.50-0-1In257590,054
130-1-025.0%25752,199,741
Total:63.3%371412374,492,320
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 8/12100.0*Lottery seed
Nationals 401 Mets 277.5 -1.0
Reds 261.5 Cubs 224.5 +0.2
Brewers 260.5 Pirates 295.5 +0.2
Phillies 302 Braves 202 +0.2
Angels 320.5 Mariners 276 +0.1
Blue Jays 279 Rays 329.5 -0.1
Astros 138 Rangers 277.5 -0.1
Twins 300 Royals 340.5 -0.0
Week of 8/19100.0*Lottery seed
Nationals 287 Braves 217 -1.0
Reds 346.5 Pirates 262.5 +0.1
Mariners 195 Astros 155 -0.1
Indians 239.5 Twins 261.5 +0.1
Angels 289 Rangers 238.5 +0.1
Royals 267.5 Tigers 187.5 +0.1
Yankees 237 Blue Jays 218.5 -0.1
If winner is:HomeTieAway
Week of 8/26100.0*Lottery seed
Phillies vs Nationals+2.5-0.4-2.5
Pirates vs Cubs+0.6+0.4-0.6
Brewers vs Reds+0.3-0.7-0.3
Astros vs Angels-0.1-0.2+0.1
Tigers vs Twins-0.2-0.2+0.2

What If

100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L-T123456789101112131415161718192021222324
141-0-0343123102
13.50-0-11718243713
130-1-00276736411
Total:171715852315