{"pre_text": ["2018 ppg annual report and form 10-k 59 other acquisitions in 2018 , 2017 , and 2016 , the company completed several smaller business acquisitions .", "the total consideration paid for these acquisitions , net of cash acquired , debt assumed and other post closing adjustments , was $ 108 million , $ 74 million and $ 43 million , respectively .", "in january 2018 , ppg acquired procoatings , a leading architectural paint and coatings wholesaler located in the netherlands .", "procoatings , established in 2001 , distributes a large portfolio of well-known professional paint brands through its network of 23 multi-brand stores .", "the company employs nearly 100 people .", "the results of this business since the date of acquisition have been reported within the architectural coatings americas and asia pacific business within the performance coatings reportable segment .", "in january 2017 , ppg acquired certain assets of automotive refinish coatings company futian xinshi ( 201cfutian 201d ) , based in the guangdong province of china .", "futian distributes its products in china through a network of more than 200 distributors .", "in january 2017 , ppg completed the acquisition of deutek s.a. , a leading romanian paint and architectural coatings manufacturer , from the emerging europe accession fund .", "deutek , established in 1993 , manufactures and markets a large portfolio of well-known professional and consumer paint brands , including oskar and danke! .", "the company 2019s products are sold in more than 120 do-it-yourself stores and 3500 independent retail outlets in romania .", "divestitures glass segment in 2017 , ppg completed a multi-year strategic shift in the company's business portfolio , resulting in the exit of all glass operations which consisted of the global fiber glass business , ppg's ownership interest in two asian fiber glass joint ventures and the flat glass business .", "accordingly , the results of operations , including the gains on the divestitures , and cash flows have been recast as discontinued operations for all periods presented .", "ppg now has two reportable business segments .", "the net sales and income from discontinued operations related to the former glass segment for the three years ended december 31 , 2018 , 2017 , and 2016 were as follows: ."], "post_text": ["during 2018 , ppg released $ 13 million of previously recorded accruals and contingencies established in conjunction with the divestitures of businesses within the former glass segment as a result of completed actions , new information and updated estimates .", "also during 2018 , ppg made a final payment of $ 20 million to vitro s.a.b .", "de c.v related to the transfer of certain pension obligations upon the sale of the former flat glass business .", "north american fiber glass business on september 1 , 2017 , ppg completed the sale of its north american fiber glass business to nippon electric glass co .", "ltd .", "( 201cneg 201d ) .", "cash proceeds from the sale were $ 541 million , resulting in a pre-tax gain of $ 343 million , net of certain accruals and contingencies established in conjunction with the divestiture .", "ppg 2019s fiber glass operations included manufacturing facilities in chester , south carolina , and lexington and shelby , north carolina ; and administrative and research-and-development operations in shelby and in harmar , pennsylvania , near pittsburgh .", "the business , which employed more than 1000 people and had net sales of approximately $ 350 million in 2016 , supplies the transportation , energy , infrastructure and consumer markets .", "flat glass business in october 2016 , ppg completed the sale of its flat glass manufacturing and glass coatings operations to vitro s.a.b .", "de c.v .", "ppg received approximately $ 740 million in cash proceeds and recorded a pre-tax gain of $ 421 million on the sale .", "under the terms of the agreement , ppg divested its entire flat glass manufacturing and glass coatings operations , including production sites located in fresno , california ; salem , oregon ; carlisle , pennsylvania ; and wichita falls , texas ; four distribution/fabrication facilities located across canada ; and a research-and-development center located in harmar , pennsylvania .", "ppg 2019s flat glass business included approximately 1200 employees .", "the business manufactures glass that is fabricated into products used primarily in commercial and residential construction .", "notes to the consolidated financial statements ."], "table": [["( $ in millions )", "2018", "2017", "2016"], ["net sales", "$ 2014", "$ 217", "$ 908"], ["income from operations", "$ 21", "$ 30", "$ 111"], ["net gains on the divestitures of businesses", "2014", "343", "421"], ["income tax expense", "5", "140", "202"], ["income from discontinued operations net of tax", "$ 16", "$ 233", "$ 330"]], "table_ori": [["($ in millions)", "2018", "2017", "2016"], ["Net sales", "$—", "$217", "$908"], ["Income from operations", "$21", "$30", "$111"], ["Net gains on the divestitures of businesses", "—", "343", "421"], ["Income tax expense", "5", "140", "202"], ["Income from discontinued operations, net of tax", "$16", "$233", "$330"]]}

Question: what was the change in net sales for the discontinued operations related to the former glass segment from 2016 to 2017 in millions?
Evidence:
table_1: ( $ in millions ) the net sales of 2018 is $ 2014 ; the net sales of 2017 is $ 217 ; the net sales of 2016 is $ 908 ;
Program: subtract(217, 908)
Answer:
str_answer: -691
exe_answer: -691