Original sentence: According to the United World Chart, The Open Door had sold roughly 3.63 million copies worldwide as of March 24, 2007, and in the United States, has sold 1,860,227 copies as of January 15, 2008
Edited sentence: According to the United World Chart, The Open Door had sold roughly 3.63 million copies worldwide as of March 24, 2007, and in the United States, has sold 1,860,227 copies as of January 15, and over five million worldwide, making the album a huge success, given the relatively low expectations after the mediocre performance of the singles