pre_text: 2.4 KEY PERFORMANCE INDICATORS AND PERFORMANCE HIGHLIGHTS The following key performance indicators are closely monitored to ensure that business strategies and objectives are closely aligned with shareholder value creation. The key performance indicators are not measurements in accordance with IFRS and should not be considered an alternative to other measures of performance in accordance with IFRS. The Corporation's method of calculating key performance indicators may differ from other companies and, accordingly, these key performance indicators may not be comparable to similar measures presented by other companies. The Corporation measures its performance, with regard to these objectives by monitoring revenue, adjusted EBITDA(1), free cash flow(1) and capital intensity(1) on a constant currency basis(1). (1) 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. (2) Following the announcement of the agreement on February 27, 2019 to sell Cogeco Peer 1, fiscal 2019 financial guidelines were revised. (3) Actual results are presented in constant currency based on fiscal 2018 average foreign exchange rates of 1.2773 USD/CDN. For further details on the Corporation's operating results, please refer to the "Operating and financial results", the "Segmented operating and financial results" and the "Cash flow analysis" sections.
table: (in millions of dollars, except percentages) Actual Fiscal 2018 (1) $ Revised projections (2) Fiscal 2019 (constant currency) (3) Actual Fiscal 2019 (constant currency) (3) $ Actual Fiscal 2019 (constant currency) (3) % Achievement of the projections Fiscal 2019
table: Financial guidelines
table: Revenue 2,147 Increase of 6% to 8% 2,294 6.8 Achieved
table: Adjusted EBITDA 1,007 Increase of 8% to 10% 1,092 8.5 Achieved
table: Acquisitions of property, plant and equipment 458 $450 to $470 425 (7.1) Surpassed
table: Capital intensity 21.3% 20% to 21% 18.5% - Surpassed
table: Free cash flow 302 Increase of 38% to 45% 453 50.0 Surpassed
question: Analyse this data from a financial earnings document. What was the increase / (decrease) in Free Cash flow from 2018 to 2019?