what was the percentage change in total revenues net of interest expense between 2016 and 2018?
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 | $2,254 | $2,000 | $3,045 | 13% | (34)% |
| Non-interest revenue | (171) | 1,132 | 2,188 | NM | (48) |
| Total revenues, net of interest expense | $2,083 | $3,132 | $5,233 | (33)% | (40)% |
| Total operating expenses | $2,272 | $3,814 | $5,042 | (40)% | (24)% |
| Net credit losses | $21 | $149 | $435 | (86)% | (66)% |
| Credit reserve build (release) | (218) | (317) | (456) | 31 | 30 |
| Provision (release) for unfunded lending commitments | (3) | — | (8) | — | 100 |
| Provision for benefits and claims | (2) | (7) | 98 | 71 | NM |
| Provisions for credit losses and for benefits and claims | $(202) | $(175) | $69 | (15) | NM |
| Income (loss) from continuing operations before taxes | $13 | $(507) | $122 | NM | NM |
| Income taxes (benefits) | (113) | 19,064 | (455) | NM | NM |
| Income (loss) from continuing operations | $126 | $(19,571) | $577 | NM | NM |
| Income (loss) from discontinued operations, net of taxes | (8) | (111) | (58) | 93 | (91) |
| Net income (loss) before attribution of noncontrolling interests | $118 | $(19,682) | $519 | NM | NM |
| Noncontrolling interests | 11 | (6) | (2) | NM | NM |
| Net income (loss) | $107 | $(19,676) | $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. .

total_revenues_net_of_interest_expense = 2083 - 5233
answer = total_revenues_net_of_interest_expense / 5233 * 100