Input (grade 9): Charley caused approximately $14 billion (2004 USD, $USD) in damage to the United States, making it the fourth costliest hurricane in U.S. history, and the second costliest at the time. Although the storm caused serious damage, much of this was limited to a narrow swath associated with the hurricane's eye wall.
Output (grade 6): The damage caused by Charley made it the second costliest storm in U.S. history, only to Hurricane Andrew.