In an economy characterized by floating exchange rates, let's consider two countries: Country X and Country Y. Country X is expected to experience significantly higher inflation rates than Country Y over the next year. According to the Relative Purchasing Power Parity (PPP) theory, which posits that the exchange rate between two currencies will adjust to reflect changes in the price levels of the two countries, what would be the expected directional movement of Country X's currency relative to Country Y's currency over the next year?