the new york stock exchange ( the 201cseparation 201d ) . the separation was effectuated through a pro-rata dividend distribution on july 2 , 2016 of all of the then-outstanding shares of common stock of fortive corporation to the holders of common stock of danaher as of june 15 , 2016 . in this annual report , the terms 201cfortive 201d or the 201ccompany 201d refer to either fortive corporation or to fortive corporation and its consolidated subsidiaries , as the context requires . reportable segments the table below describes the percentage of sales attributable to each of our two segments over each of the last three years ended december 31 , 2017 . for additional information regarding sales , operating profit and identifiable assets by segment , please refer to note 17 to the consolidated and combined financial statements included in this annual report. .

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, 2017, 2016, 2015
professional instrumentation, 47% ( 47 % ), 46% ( 46 % ), 48% ( 48 % )
industrial technologies, 53% ( 53 % ), 54% ( 54 % ), 52% ( 52 % )
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professional instrumentation our professional instrumentation segment offers essential products , software and services used to create actionable intelligence by measuring and monitoring a wide range of physical parameters in industrial applications , including electrical current , radio frequency signals , distance , pressure , temperature , radiation , and hazardous gases . customers for these products and services include industrial service , installation and maintenance professionals , designers and manufacturers of electronic devices and instruments , medical technicians , safety professionals and other customers for whom precision , reliability and safety are critical in their specific applications . 2017 sales for this segment by geographic destination were : north america , 50% ( 50 % ) ; europe , 18% ( 18 % ) ; asia pacific , 26% ( 26 % ) , and all other regions , 6% ( 6 % ) . our professional instrumentation segment consists of our advanced instrumentation & solutions and sensing technologies businesses . our advanced instrumentation & solutions business was primarily established through the acquisitions of qualitrol in the 1980s , fluke corporation in 1998 , pacific scientific company in 1998 , tektronix in 2007 , invetech in 2007 , keithley instruments in 2010 , emaint in 2016 , industrial scientific in 2017 , landauer in 2017 and numerous bolt-on acquisitions . advanced instrumentation & solutions our advanced instrumentation & solutions business consists of : field solutions our field solutions products include a variety of compact professional test tools , thermal imaging and calibration equipment for electrical , industrial , electronic and calibration applications , online condition-based monitoring equipment ; portable gas detection equipment , consumables , and software as a service ( saas ) offerings including safety/user behavior , asset management , and compliance monitoring ; subscription-based technical , analytical , and compliance services to determine occupational and environmental radiation exposure ; and computerized maintenance management software for critical infrastructure in utility , industrial , energy , construction , public safety , mining , and healthcare applications . these products and associated software solutions measure voltage , current , resistance , power quality , frequency , pressure , temperature , radiation , hazardous gas and air quality , among other parameters . typical users of these products and software include electrical engineers , electricians , electronic technicians , safety professionals , medical technicians , network technicians , first-responders , and industrial service , installation and maintenance professionals . the business also makes and sells instruments , controls and monitoring and maintenance systems used by maintenance departments in utilities and industrial facilities to monitor assets , including transformers , generators , motors and switchgear . products are marketed under a variety of brands , including fluke , fluke biomedical , fluke networks , industrial scientific , landauer and qualitrol . product realization our product realization services and products help developers and engineers across the end-to-end product creation cycle from concepts to finished products . our test , measurement and monitoring products are used in the design , manufacturing and development of electronics , industrial , video and other advanced technologies . typical users of these products and services include research and development engineers who design , de-bug , monitor and validate the function and performance of electronic components , subassemblies and end-products , and video equipment manufacturers , content developers and broadcasters . the business also provides a full range of design , engineering and manufacturing services and highly-engineered , modular components to enable conceptualization , development and launch of products in the medical diagnostics , cell therapy and consumer markets . finally , the business designs , develops , manufactures and markets critical , highly-engineered energetic materials components in specialized vertical applications . products and services are marketed .

Question: what was the change in percentage of sales attributable to industrial technologies from 2016 to 2017?
Program: subtract(53%, 54%)
Answer: -0.01