Answer
€8 million was the transfer valuation when Croatian winger Ivan Perišić made the switch from German club Borussia Dortmund to fellow Bundesliga side VfL Wolfsburg in January 2013. Perišić had joined Dortmund in 2011 from Belgian Pro League club Club Brugge and made a significant impact during his time there, showcasing his versatility and goal-scoring prowess.