Complex sentence: In its first week, it sold 3,969,792 units ($66,057,339) and eventually reached 10,811,453 units ($182,591,149), becoming the best-selling DVD among those released in 2009 in units sold.
Split into simpler sentences: In its first week it sold 3,969,792 units ($66,057,339). It eventually reached 10,811,453 units ($182,591,149), becoming the best-selling DVD among those released in 2009, in units sold.