Complex sentence: No longer a unique product of Chicago's famed Marshall Field's, as a Macy's branded product, Frango's are viewed as just another mint75% off retail, Frango's sales remain significantly below previous years' sales at Marshall Field's.
Split into simpler sentences: No longer a unique product of Chicago's famed Marshall Field's, as a Macy's branded product, Frango's are viewed as just another mint. Even when sold by Macy's at 75% off retail, Frango's sales remain significantly below previous years'sales at Marshall Field's.