as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
what is today's price of 15 000 euro given 15 years ago?
user
there's often a legal basis to answer this question. for instance, austria (guessing from your profile) currently uses a 4% statutory interest rate. you'll need to dig up not just the actual but also the historical rates. note that you'll want the non-commercial interest rate - some countries differentiate between loans to businesses and loans to individuals.
assistant