Please answer the given financial question based on the context.
Context: corporate/other corporate/other includes treasury results , unallocated corporate expenses , offsets to certain line-item reclassifications reported in the business segments ( inter-segment eliminations ) , the results of discontinued operations and unallocated taxes . in millions of dollars 2008 2007 2006 .
|in millions of dollars|2008|2007|2006|
|net interest revenue|$ -1288 ( 1288 )|$ -461 ( 461 )|$ -345 ( 345 )|
|non-interest revenue|438|-291 ( 291 )|-599 ( 599 )|
|revenues net of interest expense|$ -850 ( 850 )|$ -752 ( 752 )|$ -944 ( 944 )|
|operating expenses|526|1830|202|
|provisions for loan losses and for benefits and claims|1|-2 ( 2 )|4|
|loss from continuing operations before taxes and minority interest|$ -1377 ( 1377 )|$ -2580 ( 2580 )|$ -1150 ( 1150 )|
|income tax benefits|-421 ( 421 )|-922 ( 922 )|-498 ( 498 )|
|minority interest net of taxes|-2 ( 2 )|3|2|
|loss from continuing operations|$ -954 ( 954 )|$ -1661 ( 1661 )|$ -654 ( 654 )|
|income from discontinued operations|4410|628|1087|
|net income ( loss )|$ 3456|$ -1033 ( 1033 )|$ 433|
2008 vs . 2007 revenues , net of interest expense declined primarily due to the gain in 2007 on the sale of certain corporate-owned assets and higher inter-segment eliminations partially offset by improved treasury hedging activities . operating expenses declined primarily due to lower restructuring charges in the current year as well as reductions in incentive compensation and benefits expense . discontinued operations represent the sale of citigroup 2019s german retail banking operations and citicapital . see note 3 to the consolidated financial statements on page 136 for a more detailed discussion . 2007 vs . 2006 revenues , net of interest expense improved primarily due to improved treasury results and a gain on the sale of certain corporate-owned assets , partially offset by higher inter-segment eliminations . operating expenses increased primarily due to restructuring charges , increased staffing , technology and other unallocated expenses , partially offset by higher inter-segment eliminations . income tax benefits increased due to a higher pretax loss in 2007 , offset by a prior-year tax reserve release of $ 69 million relating to the resolution of the 2006 tax audits . discontinued operations represent the operations in the sale of the asset management business and the sale of the life insurance and annuities business . for 2006 , income from discontinued operations included gains and tax benefits relating to the final settlement of the life insurance and annuities and asset management sale transactions and a gain from the sale of the asset management business in poland , as well as a tax reserve release of $ 76 million relating to the resolution of the 2006 tax audits. .
Question: what was the percentage change in non-interest revenue from 2006 to 2007?


Answer: The answer is:-0.51419