Complex sentence: After spending one week on the charts it dropped off; despite its poor debut, and first week sales of less than 4000, the album has been seen as a fresh start, and a new beginning for the band.
Split into simpler sentences: After spending one week on the charts it dropped off. Despite its poor debut and first week sales of fewer than 4,000, the album has been seen as a fresh start and a new beginning for the band.