China revised its 2014 growth rate to 7.3% from 7.4% due to a weaker-than-reported contribution from the service sector, casting doubt on an economic bright spot amid concerns about the health of the world’s second-largest economy. The change is relatively small but suggests that China’s effort to meet its official growth target of about 7.5% last year was tougher than it seemed. It comes as worries grow that China will struggle to reach this year’s goal of about 7%. “That’s the beauty of using ‘about’ in your targets,” said IHS Global Insight economist Brian Jackson. “It’s undefined. No one knows if you reach it. Even they may not know. It gives them flexibility to revise it later.” The country’s gross domestic product last year totaled 63.614 trillion yuan, or about $10 trillion, China’s statistics bureau said Monday. That was down 32.4 billion yuan from its initial estimate in January […]