CITEworld wrote about Microsoft losing $1.7 billion on Surface so far.
total loss for FY2014 was then 2.192 in revenue minus $2.872 in cost of that revenue).
But that was small potatoes compared to what Microsoft lost on the Surface the previous fiscal year. Using Microsoft’s stated revenue of 1.902 billion.
The total loss for FY2013 was thus 853 million minus $1.902 billion in cost of revenue and adjustments).
Since Microsoft started selling the Surface nearly two years ago, it has lost $1.7 billion on the line. (Microsoft, SEC filings.)