Please answer the given financial question based on the context.
Context: management 2019s discussion and analysis net interest income 2012 versus 2011 . net interest income on the consolidated statements of earnings was $ 3.88 billion for 2012 , 25% ( 25 % ) lower than 2011 . the decrease compared with 2011 was primarily due to lower average yields on financial instruments owned , at fair value , and collateralized agreements . 2011 versus 2010 . net interest income on the consolidated statements of earnings was $ 5.19 billion for 2011 , 6% ( 6 % ) lower than 2010 . the decrease compared with 2010 was primarily due to higher interest expense related to our long-term borrowings and higher dividend expense related to financial instruments sold , but not yet purchased , partially offset by an increase in interest income from higher yielding collateralized agreements . operating expenses our operating expenses are primarily influenced by compensation , headcount and levels of business activity . compensation and benefits includes salaries , discretionary compensation , amortization of equity awards and other items such as benefits . discretionary compensation is significantly impacted by , among other factors , the level of net revenues , overall financial performance , prevailing labor markets , business mix , the structure of our share-based compensation programs and the external environment . in the context of more difficult economic and financial conditions , the firm launched an initiative during the second quarter of 2011 to identify areas where we can operate more efficiently and reduce our operating expenses . during 2012 and 2011 , we announced targeted annual run rate compensation and non-compensation reductions of approximately $ 1.9 billion in aggregate . the table below presents our operating expenses and total staff. .
|$ in millions|year ended december 2012|year ended december 2011|year ended december 2010|
|compensation and benefits|$ 12944|$ 12223|$ 15376|
|u.k . bank payrolltax|2014|2014|465|
|brokerage clearing exchange anddistribution fees|2208|2463|2281|
|market development|509|640|530|
|communications and technology|782|828|758|
|depreciation and amortization|1738|1865|1889|
|occupancy|875|1030|1086|
|professional fees|867|992|927|
|insurance reserves1|598|529|398|
|other expenses|2435|2072|2559|
|total non-compensation expenses|10012|10419|10428|
|total operating expenses|$ 22956|$ 22642|$ 26269|
|total staff atperiod-end2|32400|33300|35700|
total staff at period-end 2 32400 33300 35700 1 . related revenues are included in 201cmarket making 201d on the consolidated statements of earnings . 2 . includes employees , consultants and temporary staff . 48 goldman sachs 2012 annual report .
Question: what is the percentage change in the number of staff in 2012?


Answer: The answer is:-0.02703