How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Tuesday100.0*Chance in playoffs100.0*Average seed
Dallas 5 Boston 3 +13.5
+0.7
Chicago 3 San Jose 6 -3.0
-0.1
LosAngeles 5 Anaheim 2 +0.8
+0.1
Floride 2 Edmonton 3 +0.8
Vancouver 7 Calgary 3 -0.7
Tampa Bay 2 NewJersey 3 (ot)+0.1
If winner is:HomeAway
Wednesday100.0*Chance in playoffs100.0*Average seed
Edmonton vs Dallas-20.6+20.6
-0.9+0.9
San Jose vs Montreal-6.4+6.4
-0.2+0.2
Floride vs Winnipeg-5.3+5.3
-0.2+0.2
Calgary vs Minnesota-2.0+2.0
Anaheim vs NewJersey-0.2+0.2
-0.1+0.1
Philadelph vs Tampa Bay+0.1-0.1
+0.1-0.1

What If

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

100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTTplayoffs12345678910111213Count
5430-0099.9%329491720441,058
5221-0051.3110404091,322,918
5012-002.0222532121,321,746
4803-00Out135037441,802
Total:32.5%04661623251453,527,524
Points
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

Tuesday100.0*Lottery seed
Dallas 5 Boston 3 -1.9
Chicago 3 San Jose 6 +0.2
LosAngeles 5 Anaheim 2 -0.1
Minnesota 2 Detroit 4 +0.1
Montreal 3 Colorado 7 -0.1
Tampa Bay 2 NewJersey 3 (ot)-0.1
If winner is:HomeAway
Wednesday100.0*Lottery seed
Edmonton vs Dallas+2.2-2.2
Floride vs Winnipeg+0.3-0.3
San Jose vs Montreal+0.2-0.2
Anaheim vs NewJersey+0.1-0.1
Calgary vs Minnesota+0.1-0.1
Colorado vs Nashville-0.1+0.1
Detroit vs NYRangers+0.1-0.1

What If

100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TPWL-OTT1234567891011121314151617181920212223242526
5430-00052739226100
5221-0000413181240409
5012-0002124332910
4803-00031838329
Total:0135325751119191243541