Microsoft submitted their Form 10-K filing with the Securities and Exchange Commission today and it revealed some interesting information about Surface. Microsoft Surface totally generated a revenue of $853 million. This is not so encouraging number for Microsoft because it equates to poor sales of the Surface units. If you roughly calculate the $853 million for $500 per Surface unit, you end up with just 1.7 million Surface units sold number.
Recently, Microsoft announced a $900 million charge to reflect a $150 price drop in the Surface RT device, attempting to clear inventory due to poor sales.