Complex sentence: The population within 50 miles of Watts Bar was 1,186,648, according to 2010 U.S. Census data analyzed for msnbc.com, an increase of 12.8 percent in a decade.
Split into simpler sentences: The population within of Watts Bar was 1,186,648, according to 2010 U.S. Census data analyzed for msnbc.com. This is an increase of 12.8 percent in a decade.