How are these numbers calculated?

Big Games

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

If winner is:HomeDrawAway
Week of 8/1100.0*Chance wins title100.0*UEFA CL100.0*Serie B100.0*Average seed
Napoli vs Palermo+9.7-5.0No
+29.1-15.0No
No-15.0+29.1
+6.4+0.0-6.4
Sassuolo vs Torino-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8
Atalanta vs Bologna-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8
Cagliari vs Chievo-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8
Roma vs Sampdoria-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8
Crotone vs Empoli-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8
Udinese vs TBD-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8
Lazio vs Milan-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8
Fiorentina vs Genoa-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8
Internazionale vs Juventus-0.3+0.6-0.3
-0.8+1.7-0.8
-0.8+1.7-0.8

What If

Chances based on how well Napoli finishes out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleUEFA CL1234567891011121314151617181920Serie BCount
31-0-014.7%44.1%1515151414129520No7,864,291,480
10-1-00.00.0000013610141515141063100000.0%7,396,338,362
00-0-1NoNo025912141415151544.17,864,471,278
Total:5.0%15.0%5555555555555555555515.0%23,125,101,120
Points
Chance Will Win Championship