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
Ottawa 3 Nashville 4 +3.7
Montreal 3 Colorado 7 +2.6
+0.2
Dallas 5 Boston 3 +1.9
+0.1
Philadelph 6 Columbus 3 +1.7
Minnesota 2 Detroit 4 -1.3
-0.1
If winner is:HomeAway
Wednesday100.0*Chance in playoffs100.0*Average seed
Pittsburgh vs Washington+15.2-21.7
+0.8-1.2
San Jose vs Montreal+2.3-3.2
+0.1-0.2
Detroit vs NYRangers-1.5+1.1
-0.1+0.1
Colorado vs Nashville+0.3-0.4
+0.1-0.1
Philadelph vs Tampa Bay-0.1+0.1

What If

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

100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTTplayoffs12345678910111213Count
5220-00In1048423,576,323
5011-0096.0%2344119405,151,154
4802-0014.5021232371521,855,095
Total:83.1%317312111773010,582,572
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
Montreal 3 Colorado 7 -0.2
Ottawa 3 Nashville 4 -0.1
Chicago 3 San Jose 6 +0.1
Dallas 5 Boston 3 -0.1
Minnesota 2 Detroit 4 +0.1
If winner is:HomeAway
Wednesday100.0*Lottery seed
Pittsburgh vs Washington-1.4+2.0
Colorado vs Nashville-0.1+0.2
Detroit vs NYRangers+0.1-0.1
San Jose vs Montreal-0.1+0.1
Calgary vs Minnesota+0.1-0.1
Philadelph vs Tampa Bay+0.1-0.1
Anaheim vs NewJersey+0.1-0.1
Floride vs Winnipeg+0.0-0.1

What If

100100100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TPWL-OTT1234567891011121314151617181920212223242526
5220-000417333312
5011-000033541172100
4802-00021203163424810
Total:016111321201011364100