AMSTERDAM (Reuters) – Dutch bank ABN Amro beat analyst expectations on Wednesday with a jump of 21% in second-quarter net profit to 475 million euros ($485 million), as the release of previous impairments offset rising costs. Analysts in a company-compiled poll had predicted net profit of 312 million euros for the April-June period on average, down from 393 million a year ago. ($1=0.9793 euros) (Reporting by Bart Meijer; Editing by Clarence Fernandez)