{"pre_text": ["as of 30 september 2016 and 2015 , there were no assets or liabilities classified as discontinued operations relating to the homecare business .", "5 .", "business restructuring and cost reduction actions the charges we record for business restructuring and cost reduction actions have been excluded from segment operating income .", "cost reduction actions in fiscal year 2016 , we recognized an expense of $ 33.9 ( $ 24.0 after-tax , or $ .11 per share ) for severance and other benefits related to cost reduction actions which resulted in the elimination of approximately 700 positions .", "the expenses related primarily to the industrial gases 2013 americas and the industrial gases 2013 emea segments .", "the following table summarizes the carrying amount of the accrual for cost reduction actions at 30 september severance and other benefits ."], "post_text": ["business realignment and reorganization on 18 september 2014 , we announced plans to reorganize the company , including realignment of our businesses in new reporting segments and other organizational changes , effective as of 1 october 2014 .", "as a result of this reorganization , we incurred severance and other charges .", "in fiscal year 2015 , we recognized an expense of $ 207.7 ( $ 153.2 after-tax , or $ .71 per share ) .", "severance and other benefits totaled $ 151.9 and related to the elimination of approximately 2000 positions .", "asset and associated contract actions totaled $ 55.8 and related primarily to a plant shutdown in the corporate and other segment and the exit of product lines within the industrial gases 2013 global and materials technologies segments .", "the 2015 charges related to the segments as follows : $ 31.7 in industrial gases 2013 americas , $ 52.2 in industrial gases 2013 emea , $ 10.3 in industrial gases 2013 asia , $ 37.0 in industrial gases 2013 global , $ 27.6 in materials technologies , and $ 48.9 in corporate and other .", "during the fourth quarter of 2014 , an expense of $ 12.7 ( $ 8.2 after-tax , or $ .04 per share ) was incurred relating to the elimination of approximately 50 positions .", "the 2014 charge related to the segments as follows : $ 2.9 in industrial gases 2013 americas , $ 3.1 in industrial gases 2013 emea , $ 1.5 in industrial gases 2013 asia , $ 1.5 in industrial gases 2013 global , $ 1.6 in materials technologies , and $ 2.1 in corporate and other. ."], "table": [["", "severance and other benefits"], ["2016 charge", "$ 33.9"], ["amount reflected in pension liability", "-.9 ( .9 )"], ["cash expenditures", "-20.4 ( 20.4 )"], ["currency translation adjustment", ".3"], ["30 september 2016", "$ 12.9"]], "table_ori": [["", "Severance and Other Benefits"], ["2016 Charge", "$33.9"], ["Amount reflected in pension liability", "(.9)"], ["Cash expenditures", "(20.4)"], ["Currency translation adjustment", ".3"], ["30 September 2016", "$12.9"]]}

Question: considering the years 2015-2016 , what was the decrease observed in the expense for severance and other benefits?
Evidence:
table_1: the 2016 charge of severance and other benefits is $ 33.9 ;
text_8: in fiscal year 2015 , we recognized an expense of $ 207.7 ( $ 153.2 after-tax , or $ .71 per share ) .
Program: subtract(33.9, 207.7), divide(#0, 207.7)
Answer:
str_answer: 83.67%
exe_answer: -0.83678