30 2018 ppg annual report and 10-k foreign currency translation partially offset by : cost reclassifications associated with the adoption of the new revenue recognition standard .
refer to note 2 , "revenue recognition" within part 2 of this form 10-k cost management including restructuring cost savings 2017 vs .
2016 selling , general and administrative expenses decreased $ 1 million primarily due to : lower net periodic pension and other postretirement benefit costs lower selling and advertising costs restructuring cost savings partially offset by : wage and other cost inflation selling , general and administrative expenses from acquired businesses foreign currency translation other charges and other income .

( $ in millions except percentages )
2018
% (  % ) change 2017
% (  % ) change 2016
% (  % ) change 2018 vs . 2017
% (  % ) change 2017 vs . 2016
interest expense net of interest income
$ 95
$ 85
$ 99
11.8% ( 11.8 % )
( 14.1 ) % (  % )
business restructuring net
$ 66
$ 2014
$ 191
n/a
( 100.0 ) % (  % )
pension settlement charges
$ 2014
$ 60
$ 968
( 100.0 ) % (  % )
( 93.8 ) % (  % )
other charges
$ 122
$ 74
$ 242
64.9% ( 64.9 % )
( 69.4 ) % (  % )
other income
( $ 114 )
( $ 150 )
( $ 127 )
( 24.0 ) % (  % )
18.1% ( 18.1 % )

interest expense , net of interest income interest expense , net of interest income increased $ 10 million in 2018 versus 2017 primarily due to the issuance of long- term debt in early 2018 .
interest expense , net of interest income decreased $ 14 million in 2017 versus 2016 due to lower interest rate debt outstanding in 2017 .
business restructuring , net a pretax restructuring charge of $ 83 million was recorded in the second quarter of 2018 , offset by certain changes in estimates to complete previously recorded programs of $ 17 million .
a pretax charge of $ 191 million was recorded in 2016 .
refer to note 8 , "business restructuring" in item 8 of this form 10-k for additional information .
pension settlement charges during 2017 , ppg made lump-sum payments to certain retirees who had participated in ppg's u.s .
qualified and non- qualified pension plans totaling approximately $ 127 million .
as the lump-sum payments were in excess of the expected 2017 service and interest costs for the affected plans , ppg remeasured the periodic benefit obligation of these plans in the period payments were made and recorded settlement charges totaling $ 60 million ( $ 38 million after-tax ) during 2017 .
during 2016 , ppg permanently transferred approximately $ 1.8 billion of its u.s .
and canadian pension obligations and assets to several highly rated insurance companies .
these actions triggered remeasurement and partial settlement of certain of the company 2019s defined benefit pension plans .
ppg recognized a $ 968 million pre-tax settlement charge in connection with these transactions .
refer to note 13 , "employee benefit plans" in item 8 of this form 10-k for additional information .
other charges other charges in 2018 and 2016 were higher than 2017 primarily due to environmental remediation charges .
these charges were principally for environmental remediation at a former chromium manufacturing plant and associated sites in new jersey .
refer to note 14 , "commitments and contingent liabilities" in item 8 of this form 10-k for additional information .
other income other income was lower in 2018 and 2016 than in 2017 primarily due to the gain from the sale of the mexican plaka business of $ 25 million and income from a legal settlement of $ 18 million in 2017 .
refer to note 3 , "acquisitions and divestitures" in item 8 of this form 10-k for additional information. .

Question: what was the total pre-tax restructuring program cost in millions?
Answer: 257

Question: assuming the same change in net interest expense in 2019 as occurred in 2018 , what would the 2019 expense be , in millions?
Answer: 105