Economists often are interested in percentage change from one period to the next. The percentage rate of change of gross domestic product​ (GDP) is an important macroeconomic variable. If in 2010 GDP was​ $11,150 billion​ dollars, and GDP increased to $11,934 billion in​ 2011, what is the growth rate of the U.S. economy in​ 2011? (Enter your response rounded to one decimal​ place.)