yogurt business in china and simultaneously entered into a new yoplait license agreement with the purchaser for their use of the yoplait brand . we recorded a pre-tax gain of $ 5.4 million . during the fourth quarter of fiscal 2018 , we acquired blue buffalo pet products , inc . ( 201cblue buffalo 201d ) for an aggregate purchase price of $ 8.0 billion , including $ 103.0 million of consideration for net debt repaid at the time of the acquisition . in accordance with the definitive agreement and plan of merger , a subsidiary of general mills merged into blue buffalo , with blue buffalo surviving the merger as a wholly owned subsidiary of general mills . in accordance with the merger agreement , equity holders of blue buffalo received $ 40.00 per share in cash . we financed the transaction with a combination of $ 6.0 billion in debt , $ 1.0 billion in equity , and cash on hand . in fiscal 2019 , we recorded acquisition integration costs of $ 25.6 million in sg&a expenses . in fiscal 2018 , we recorded acquisition transaction and integration costs of $ 34.0 million in sg&a expenses and $ 49.9 million in interest , net related to the debt issued to finance the acquisition . we consolidated blue buffalo into our consolidated balance sheets and recorded goodwill of $ 5.3 billion , an indefinite-lived intangible asset for the blue buffalo brand of $ 2.7 billion , and a finite-lived customer relationship asset of $ 269.0 million . the goodwill was primarily attributable to future growth opportunities and any intangible assets that did not qualify for separate recognition . the goodwill is included in the pet reporting unit and is not deductible for tax purposes . in the fourth quarter of fiscal 2019 , we recorded adjustments to certain purchase accounting liabilities that resulted in a $ 5.6 million increase to goodwill . the consolidated results of blue buffalo are reported as our pet operating segment on a one-month lag . the following unaudited supplemental pro forma information is presented as if we had acquired blue buffalo at the beginning of fiscal 2017 : unaudited fiscal year .
what was the percent of the change in the net sales from 2017 to 2018
the fiscal 2017 pro forma amounts include transaction and integration costs of $ 83.9 million and the purchase accounting adjustment to record inventory at fair value of $ 52.7 million . the fiscal 2017 and fiscal 2018 pro forma amounts include interest expense of $ 238.7 million on the debt issued to finance the transaction and amortization expense of $ 13.5 million based on the estimated fair value and useful life of the customer relationships intangible asset . additionally , the pro forma amounts include an increase to cost of sales by $ 1.6 million in fiscal 2017 and $ 5.1 million in fiscal 2018 to reflect the impact of using the lifo method of inventory valuation on blue buffalo 2019s historical operating results . pro forma amounts include related tax effects of $ 125.1 million in fiscal 2017 and $ 14.5 million in fiscal 2018 . unaudited pro forma amounts are not necessarily indicative of results had the acquisition occurred at the beginning of fiscal 2017 or of future results . note 4 . restructuring , impairment , and other exit costs asset impairments in fiscal 2019 , we recorded a $ 192.6 million charge related to the impairment of our progresso , food should taste good , and mountain high brand intangible assets in restructuring , impairment , and other exit costs . please see note 6 for additional information . in fiscal 2019 , we recorded a $ 14.8 million charge in restructuring , impairment , and other exit costs related to the impairment of certain manufacturing assets in our north america retail and asia & latin america segments. .