Making liqueurs, one runs up against the “what percentage of alcohol is this?” question. The sugar loadings are often specified in Mass per Volume terms such as gram/litre. This calculates the volume of simple sugar syrup to add on the basis of ABV. Example: Drambuie Liqueur has 337.8 grams of sugar per litre at 40% ABV (est). This is in HTML - a portable format.
Cheers