The number of people flying to, from, and within the United States in 2009 was at its

Question:

The number of people flying to, from, and within the United States in 2009 was at its lowest level since 2004. In 2009, the number of air travelers totaled 769.6 million, a decrease of 8.2% from 2004 (Source: Bureau of Transportation Statistics, Department of Transportation). Find the number of air travelers in 2004.