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: .

($ 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

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 .

Question: Analyse this data from a financial earnings document. what was the change in net sales for the discontinued operations related to the former glass segment from 2016 to 2017 in millions?
Choices:
-133
109
1125
-523
-691.0
Correct choice index: 4