pre_text: (1)  The bonus paid in 2019, 2018 and 2017 was approved by the compensation Committee and Supervisory Board with respect to the 2018, 2017 and 2016 financial year, respectively, based on the evaluation and assessment of the actual fulfillment of a number of pre-defined objectives for such year. (2)  Including stock awards, employer social contributions, company car allowance, pension contributions, complementary pension contributions, miscellaneous allowances as well as one-off contractually obligated deferred compensation paid to Mr. Bozotti in 2019. In accordance with the resolutions adopted at our AGM held on May 30, 2012, the bonus of our former President and Chief Executive Officer, Mr. Bozotti, in 2018 and 2017 included a portion of a bonus payable in stock awards and corresponding to 86,782 and 59,435 vested shares, respectively, based on fulfillment of a number of pre-defined objectives. In addition, our sole member of our Managing Board, President and Chief Executive Officer, Mr. Chery, was granted, in accordance with the compensation policy adopted by our General Meeting of Shareholders and subsequent shareholder authorizations, up to 100,000 unvested Stock Awards. The vesting of such stock awards is conditional upon the sole member of our Managing Board, President and Chief Executive Officer’s, continued service with us. (3) In 2019, the total compensation of the sole member of our Managing Board, President and Chief Executive Officer was 46% fixed to 54% variable, compared to 12% fixed to 88% variable in 2018 and 44% fixed to 56% variable in 2017.
table: 2019 2018 2017
table: Salary $896,297 $927,820 $903,186
table: Bonus(1) $1,280,173 $3,214,578 $1,044,514
table: Charges and Non-cash Benefits(2) $5,618,382 $6,971,946 $1,828,814
table: Total(3) $7,794,852 $11,114,344 $3,776,514
question: Analyse this data from a financial earnings document. What is the increase/ (decrease) in Bonus from the period 2017 to 2018?