pre_text: OPERATING AND FINANCIAL RESULTS (1) For the three-month period ended August 31, 2019, the average foreign exchange rate used for translation was 1.3222 USD/CDN. (2) Fiscal 2018 was restated to comply with IFRS 15 and to reflect a change in accounting policy as well as to reclassify results from Cogeco Peer 1 as discontinued
  operations. For further details, please consult the "Accounting policies" and "Discontinued operations" sections. (3) Fiscal 2019 actuals are translated at the average foreign exchange rate of the comparable period of fiscal 2018 which was 1.3100 USD/CDN.
table: Three months ended August 31, 2019 (1) 2018 (2) Change Change in constant currency Foreign exchange impact
table: (in thousands of dollars, except percentages) $ $ % % $
table: Revenue 583,673 566,184 3.1 2.7 2,427
table: Operating expenses 302,833 297,977 1.6 1.1 1,441
table: Management fees – Cogeco Inc. 5,230 4,796 9.0 9.0 -
table: Adjusted EBITDA 275,610 263,411 4.6 4.3 986
table: Adjusted EBITDA margin 47.2% 46.5%
question: Analyse this data from a financial earnings document. What was the average operating expenses from three months ended August 31, 2018 to 2019?