corporate/other corporate/other includes certain unallocated costs of global staff functions ( including finance , risk , human resources , legal and compliance ) , other corporate expenses and unallocated global operations and technology expenses and income taxes , as well as corporate treasury , certain north america legacy consumer loan portfolios , other legacy assets and discontinued operations ( for additional information on corporate/other , see 201ccitigroup segments 201d above ) .at december 31 , 2018 , corporate/other had $ 91 billion in assets , an increase of 17% ( 17 % ) from the prior year .in millions of dollars 2018 2017 2016 % (  % ) change 2018 vs .2017 % (  % ) change 2017 vs .2016 .
[['in millions of dollars', '2018', '2017', '2016', '% (  % ) change2018 vs . 2017', '% (  % ) change2017 vs . 2016'], ['net interest revenue', '$ 2254', '$ 2000', '$ 3045', '13% ( 13 % )', '( 34 ) % (  % )'], ['non-interest revenue', '-171 ( 171 )', '1132', '2188', 'nm', '-48 ( 48 )'], ['total revenues net of interest expense', '$ 2083', '$ 3132', '$ 5233', '( 33 ) % (  % )', '( 40 ) % (  % )'], ['total operating expenses', '$ 2272', '$ 3814', '$ 5042', '( 40 ) % (  % )', '( 24 ) % (  % )'], ['net credit losses', '$ 21', '$ 149', '$ 435', '( 86 ) % (  % )', '( 66 ) % (  % )'], ['credit reserve build ( release )', '-218 ( 218 )', '-317 ( 317 )', '-456 ( 456 )', '31', '30'], ['provision ( release ) for unfunded lending commitments', '-3 ( 3 )', '2014', '-8 ( 8 )', '2014', '100'], ['provision for benefits and claims', '-2 ( 2 )', '-7 ( 7 )', '98', '71', 'nm'], ['provisions for credit losses and for benefits and claims', '$ -202 ( 202 )', '$ -175 ( 175 )', '$ 69', '-15 ( 15 )', 'nm'], ['income ( loss ) from continuing operations before taxes', '$ 13', '$ -507 ( 507 )', '$ 122', 'nm', 'nm'], ['income taxes ( benefits )', '-113 ( 113 )', '19064', '-455 ( 455 )', 'nm', 'nm'], ['income ( loss ) from continuing operations', '$ 126', '$ -19571 ( 19571 )', '$ 577', 'nm', 'nm'], ['income ( loss ) from discontinued operations net of taxes', '-8 ( 8 )', '-111 ( 111 )', '-58 ( 58 )', '93', '-91 ( 91 )'], ['net income ( loss ) before attribution of noncontrolling interests', '$ 118', '$ -19682 ( 19682 )', '$ 519', 'nm', 'nm'], ['noncontrolling interests', '11', '-6 ( 6 )', '-2 ( 2 )', 'nm', 'nm'], ['net income ( loss )', '$ 107', '$ -19676 ( 19676 )', '$ 521', 'nm', 'nm']]
nm not meaningful 2018 vs .2017 net income was $ 107 million in 2018 , compared to a net loss of $ 19.7 billion in the prior year , primarily driven by the $ 19.8 billion one-time , non-cash charge recorded in the tax line in 2017 due to the impact of tax reform .results in 2018 included the one-time benefit of $ 94 million in the tax line , related to tax reform .for additional information , see 201csignificant accounting policies and significant estimates 2014income taxes 201d below .excluding the one-time impact of tax reform in 2018 and 2017 , net income decreased 92% ( 92 % ) , reflecting lower revenues , partially offset by lower expenses , lower cost of credit and tax benefits related to the reorganization of certain non-u.s .subsidiaries .the tax benefits were largely offset by the release of a foreign currency translation adjustment ( cta ) from aoci to earnings ( for additional information on the cta release , see note 19 to the consolidated financial statements ) .revenues decreased 33% ( 33 % ) , driven by the continued wind-down of legacy assets .expenses decreased 40% ( 40 % ) , primarily driven by the wind-down of legacy assets , lower infrastructure costs and lower legal expenses .provisions decreased $ 27 million to a net benefit of $ 202 million , primarily due to lower net credit losses , partially offset by a lower net loan loss reserve release .net credit losses declined 86% ( 86 % ) to $ 21 million , primarily reflecting the impact of ongoing divestiture activity and the continued wind-down of the north america mortgage portfolio .the net reserve release declined by $ 96 million to $ 221 million , and reflected the continued wind-down of the legacy north america mortgage portfolio and divestitures .2017 vs .2016 the net loss was $ 19.7 billion , compared to net income of $ 521 million in the prior year , primarily driven by the one-time impact of tax reform .excluding the one-time impact of tax reform , net income declined 69% ( 69 % ) to $ 168 million , reflecting lower revenues , partially offset by lower expenses and lower cost of credit .revenues declined 40% ( 40 % ) , primarily reflecting the continued wind-down of legacy assets and the absence of gains related to debt buybacks in 2016 .revenues included approximately $ 750 million in gains on asset sales in the first quarter of 2017 , which more than offset a roughly $ 300 million charge related to the exit of citi 2019s u.s .mortgage servicing operations in the quarter .expenses declined 24% ( 24 % ) , reflecting the wind-down of legacy assets and lower legal expenses , partially offset by approximately $ 100 million in episodic expenses primarily related to the exit of the u.s .mortgage servicing operations .also included in expenses is an approximately $ 255 million provision for remediation costs related to a card act matter in 2017 .provisions decreased $ 244 million to a net benefit of $ 175 million , primarily due to lower net credit losses and a lower provision for benefits and claims , partially offset by a lower net loan loss reserve release .net credit losses declined 66% ( 66 % ) , primarily reflecting the impact of ongoing divestiture activity and the continued wind-down of the north america mortgage portfolio .the decline in the provision for benefits and claims was primarily due to lower insurance activity .the net reserve release declined $ 147 million , and reflected the continued wind-down of the legacy north america mortgage portfolio and divestitures. .

Question: what was the percentage change in total operating expenses between 2016 and 2018?
Answer: -55%