VENICE, NEW YORK, UNITED STATES - 2025/10/22: Sign at the entrance to a Dollar Tree store in Venice, Florida. (Photo by Erik McGregor/LightRocket via Getty Images)LightRocket via Getty Images70% in 12 months? That isn’t sheer luck — it’s a resurgence of classic retail principles: provide what consumers want at an unbeatable price, and then enhance profit per transaction. Dollar Tree’s (NASDAQ: DLTR) shares have risen nearly 70% over the past year, and behind that notable figure are intentional strategic cha ...