However, strong results from Macy's (NYSE: M) and Dollar Tree (NASDAQ: DLTR) suggest some retailers are finding ways to tap into changing trends and still be successful. The discount retailer reported a big jump in its dollar-store business during the first quarter, showing the impact of shoppers looking for more bargains. Dollar Tree completed its boost of its base price on goods from $1 to $1.25, which played a key role in supporting margins in an inflationary environment.