R.H. Macy & Co. said yesterday that its September sales at its stores open at least a year increased 4.2 percent, to $601.5 million, from $577.4 million in September 1990.
The results for Macy, which operates Macy's, I. Magnin and Bullock's stores, were helped by several sales promotions during the month, including a "one day" sale that lasted two days. Other retailers are expected to report lackluster September sales today.



