pre_text: Quarterly Results (Unaudited) The following table sets forth certain unaudited quarterly financial information for the 2019 and 2018 fiscal years. In the opinion of management, this information has been presented on the same basis as the audited consolidated financial statements appearing elsewhere, and all necessary adjustments (consisting primarily of normal recurring accruals) have been included in the amounts stated below to present fairly the unaudited quarterly results when read in conjunction with the audited consolidated financial statements and related notes thereto. The operating results for any quarter are not necessarily indicative of results for any future period. (1) Includes acquisition and integration charges related to our strategic collaboration with JJMD of $17.6 million, $13.4 million, $12.8 million, $8.9 million and $8.1 million for the three months ended August 31, 2019, May 31, 2019, February 28, 2019, November 30, 2018 and August 31, 2018, respectively. (2) Includes ($13.3 million), $111.4 million and $30.9 million of income tax (benefit) expense for the three months ended November 30, 2018, August 31, 2018 and February 28, 2018, respectively, related to the Tax Act. (4) Includes a distressed customer charge of $6.2 million, $18.0 million and $14.7 million during the three months ended August 31, 2019, August 31, 2018 and February 28, 2018, respectively. (5) Includes $32.4 million of stock-based compensation expense for the modification of certain performancebased restricted stock units and a one-time cash settled award during the three months ended November 30, 2017.
table: Fiscal Year 2018
table: Three Months Ended
table: (in thousands, except for per share data) August 31, 2018 May 31, 2018 February 28, 2018 November 30, 2017
table: Net revenue $5,771,831 $5,436,952 $5,301,101 $5,585,532
table: Gross profit(4) 442,147 398,227 397,133 469,285
table: Operating income(1)(4)(5) 153,896 112,971 129,532 145,754
table: Net (loss) income(2)(4)(5) (56,608) 42,702 37,528 63,919
table: Net (loss) income attributable to Jabil Inc.(2)(4)(5) $(57,314) $42,541 $37,308 $63,795
table: (Loss) earnings per share attributable to the stockholders of Jabil Inc.
table: Basic $(0.34) $0.25 $0.21 $0.36
table: Diluted $(0.34) $0.25 $0.21 $0.35
question: Analyse this data from a financial earnings document. What was the change in gross profit between May 2018 and August 2018?