The U.S. Producer Price Index (PPI) for final demand decreased 0.4% in March.The core PPI, excluding food, energy, and trade services, edged up by 0.1% in March.In contrast, the Consumer Price Index (CPI) for March revealed a 0.1% month-over-month decrease.The unexpected easing in consumer inflation was largely driven by a significant drop in gasoline prices and airline fares.