pre_text: MICROCHIP TECHNOLOGY INCORPORATED AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS (in millions) Schedule of restricted cash: (2) During the fiscal year ended March 31, 2019, the Company adopted ASU 2016-18 - Statement of Cash Flows: Restricted Cash. The following table presents the balance of restricted cash which consists of cash denominated in a foreign currency and restricted in use due to a foreign taxing authority requirement (in millions):
table: Year ended March 31,
table: 2019 2018 2017
table: Effect of foreign exchange rate changes on cash and cash equivalents — — (1.0)
table: Net decrease in cash and cash equivalents (472.7) (7.4) (1,184.0)
table: Cash and cash equivalents, and restricted cash at beginning of period (2) 901.3 908.7 2,092.7
table: Cash and cash equivalents, and restricted cash at end of period (2) $428.6 $901.3 $908.7
question: Analyse this data from a financial earnings document. What was the change in Cash and cash equivalents, and restricted cash at beginning of period between 2017 and 2018?