31. | Research and Development Expenditures Recognized as Expenses |
Research and development expenditures recognized as expenses for the years ended December 31, 2015, 2016 and 2017 were as follows:
2015 | 2016 | 2017 | ||||||||||
(in millions of Won) | ||||||||||||
Administrative expenses |
₩ | 135,508 | 120,608 | 125,795 | ||||||||
Cost of sales |
356,173 | 324,190 | 361,093 | |||||||||
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₩ | 491,681 | 444,798 | 486,888 | |||||||||
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