Complex sentence: It was announced as the 21st best-selling single of 2008 in the UK by BBC Radio 1 and has been certified Platinum by BPI denoting sales of 325,000 copies in the UK as stated by the Official UK Charts Company.
Split into simpler sentences: It was announced as the 21st best-selling single of 2008 in the UK by BBC Radio 1 and has been certified Platinum by BPI denoting sales of 200,000 +. The song sold 325,000 copies in the UK as stated by the Official UK Charts Company.