New orders for key U.S.-made capital goods unexpectedly fell amid declining demand for machinery and primary metals, pointing to a sustained slowdown in business spending on equipment that could further crimp economic growth. The economy’s outlook was also dimmed by other reports on Thursday showing a measure of factory activity in the mid-Atlantic region contracted in February for the first time since May 2016 and home resales plunging to a more than three-year low in January.