Prestige perfumer Inter Parfums, Inc. posted a 16% decline in net sales to $100.6 million for the final quarter for the three months that ended Dec. 30, 2008. European-based product sales dropped 14% to $83.4 million, while U.S.-based figures slipped 24% to $17.2 million. However, the drop in sales was seasonal. The company reported 2008’s net sales of $446.3 million were up 15% from the prior year.    Jean Madar noted, “For 2008, the three largest brands within our European based operati...