How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 10/14100.0*Chance in playoffs100.0*Average seed
Detroit vs Colorado-0.4+0.4
San Jose vs Tampa Bay+0.4-0.4
Vegas vs Montreal+0.4-0.4
Buffalo vs Quebec City-0.4+0.4
-0.1+0.1
Calgary vs Washington+0.4-0.4
Columbus vs St. Louis-0.4+0.4
Arizona vs Pittsburgh+0.4-0.4
If winner is:HomeAway
Week of 10/21100.0*Chance in playoffs100.0*Average seed
Ottawa vs Toronto+3.0-1.2
+0.5-0.2
Pittsburgh vs Florida-0.7+0.2
-0.1+0.0
Philadelphia vs Los Angeles-0.4+0.4
-0.1+0.1
St. Louis vs Boston+0.4-0.4
+0.1-0.1
Tampa Bay vs Arizona-0.4+0.4
Colorado vs Columbus+0.4-0.4
Montreal vs Vancouver-0.4+0.4
Washington vs Chicago-0.4+0.4

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs12345678910111213141516Count
5218-0In946255
5017-1In59337001,200
4816-2In254028528,754
4615-3In52343236037,269
4414-4In0630461710107,303
4213-5In01146419200227,525
4012-6100.0%03503610100361,476
3811-7100.001503711200446,306
3610-899.6002036281230000432,086
349-991.5051327291872000330,872
328-1090.64122629197200201,604
307-1150.321616262616610096,662
286-1210.220017172827143036,442
265-138.720015152628175010,706
244-141.92016203428902,294
223-151.41141742341360
202-16Out392953634
181-17Out67333
160-181.726294915177
Total:93.8%014312516106321000002,301,328
Games Above .500
Chance Will Make Playoffs