By JOSH BOAK and ANNE D’INNOCENZIO AP Business Writers BALTIMORE (AP) — U.S. retail sales tumbled by a record 16.4% from March to April as business shutdowns caused by the coronavirus kept shoppers away, threatened the viability of stores across the country and further weighed down a sinking economy. The Commerce Department’s report Friday on … Continue reading Retail sales plunge a record 16% in April as virus hit