Calculating Book Advantage on Moneylines

[Bullajami]

Checking my math with the brainiacs here. On the line
XYZ -220
ABC +200

the house advantage equals:
XYZ -220 = 5/11; converted to percentage as 11(100)/5+11 = 68.75%

ABC +200 = 2/1; converted to a percentage as 1(100)/2+1 = 33.33%

33.33% + 68.75% = 102.08%

meaning the book has a 2.08% overround built into this line.

Have I got this right?

[Ganchrow]

Well technically the overround would be 102.08% and the theoretical hold (i.e., the "juice") would be 1- 1 102.08% ≈ 2.041%.

See http://forum.sbrforum.com/handicappe...ical-hold.html.