Complex sentence: It debuted at number-one on the "Billboard" 200 chart, selling 522,000 copies in its first week of release, which gave Bieber his sixth number one album in the United States following "Believe Acoustic" (2013).
Split into simpler sentences: It debuted at number-one on the "Billboard" 200 chart, selling 522,000 copies in its first week of release. This gave Bieber his sixth number one album in the United States following "Believe Acoustic" (2013).