Wendy’s International says it’s standing by its 2003 profit forecast despite a drop in March sales. The Dublin-based hamburger chain today reported a three percent decrease in March in sales at company-owned stores that have been open at least a year. Wendy’s says it still expect earnings to rise seven to ten percent this year. It’s forecasting earnings per share this year to be between two dollars and two cents and two dollars and eight cents. The Dublin, Ohio company posted a profit of a $1.89 per share last year.