{"pre_text": ["3 .", "discontinued operations during the second quarter of 2012 , the board of directors authorized the sale of our homecare business , which had previously been reported as part of the merchant gases operating segment .", "this business has been accounted for as a discontinued operation .", "in the third quarter of 2012 , we sold the majority of our homecare business to the linde group for sale proceeds of 20ac590 million ( $ 777 ) and recognized a gain of $ 207.4 ( $ 150.3 after-tax , or $ .70 per share ) .", "the sale proceeds included 20ac110 million ( $ 144 ) that was contingent on the outcome of certain retender arrangements .", "these proceeds were reflected in payables and accrued liabilities on our consolidated balance sheet as of 30 september 2013 .", "based on the outcome of the retenders , we were contractually required to return proceeds to the linde group .", "in the fourth quarter of 2014 , we made a payment to settle this liability and recognized a gain of $ 1.5 .", "during the third quarter of 2012 , an impairment charge of $ 33.5 ( $ 29.5 after-tax , or $ .14 per share ) was recorded to write down the remaining business , which was primarily in the united kingdom and ireland , to its estimated net realizable value .", "in the fourth quarter of 2013 , an additional charge of $ 18.7 ( $ 13.6 after-tax , or $ .06 per share ) was recorded to update our estimate of the net realizable value .", "in the first quarter of 2014 , we sold the remaining portion of the homecare business for a36.1 million ( $ 9.8 ) and recorded a gain on sale of $ 2.4 .", "we entered into an operations guarantee related to the obligations under certain homecare contracts assigned in connection with the transaction .", "refer to note 16 , commitments and contingencies , for additional information .", "the results of discontinued operations are summarized below: ."], "post_text": ["the assets and liabilities classified as discontinued operations for the homecare business at 30 september 2013 consisted of $ 2.5 in trade receivables , net , and $ 2.4 in payables and accrued liabilities .", "as of 30 september 2014 , no assets or liabilities were classified as discontinued operations. ."], "table": [["", "2014", "2013", "2012"], ["sales", "$ 8.5", "$ 52.3", "$ 258.0"], ["income before taxes", "$ .7", "$ 3.8", "$ 68.1"], ["income tax provision", "2014", ".2", "20.8"], ["income from operations of discontinued operations", ".7", "3.6", "47.3"], ["gain ( loss ) on sale of business and impairment/write-down net of tax", "3.9", "-13.6 ( 13.6 )", "120.8"], ["income ( loss ) from discontinued operations net of tax", "$ 4.6", "$ -10.0 ( 10.0 )", "$ 168.1"]], "table_ori": [["", "2014", "2013", "2012"], ["Sales", "$8.5", "$52.3", "$258.0"], ["Income before taxes", "$.7", "$3.8", "$68.1"], ["Income tax provision", "—", ".2", "20.8"], ["Income from operations of discontinued operations", ".7", "3.6", "47.3"], ["Gain (Loss) on sale of business and impairment/write-down, net of tax", "3.9", "(13.6)", "120.8"], ["Income (Loss) from Discontinued Operations, net of tax", "$4.6", "$(10.0)", "$168.1"]]}

Question: what was the decrease observed in the sales during 2013 and 2014?
Evidence:
table_1: the sales of 2014 is $ 8.5 ; the sales of 2013 is $ 52.3 ; the sales of 2012 is $ 258.0 ;
Program: subtract(8.5, 52.3), divide(#0, 52.3)
Answer:
str_answer: 83.74%
exe_answer: -0.83748