My friend runs a restaurant which serves only beer and wine. The requirement is they must sell $2,000 in food each month. With beer and wine there is no percentage, that requirement comes with hard liquor. They must however offer food at all times they are open and selling booze.
From their website:
http://abc.virginia.gov/licensing/abcfaq1.htm
The mixed beverage ratio is 45% - 55%. What is the ratio for wine and beer? There is no ratio for wine and beer.