Despite strong sales, Inter Parfums reported a dip in earnings for the second quarter ended June 30 as the company faced higher royalty rates. Net earnings were down 6% to $3.2 million from $3.4 million a year prior, while sales increased 28%. The drop in profitability for the second quarter “is due to the impact of the higher Burberry royalty rate…and marketing expenses that began in January of this year,” said Russell Greenberg, executive vice president and chief financial officer....