Final answer:
In a floating exchange rate regime, the value of a currency fluctuates based on supply and demand in the market, affecting the number of shares exchanged in a floating ratio structure.
Step-by-step explanation:
In a floating exchange rate regime, the value of a currency fluctuates based on the supply and demand in the market. When there is a high demand for a currency, its value increases. Conversely, when there is a low demand, its value decreases. Therefore, the number of shares exchanged in a floating ratio structure fluctuates in accordance with the supply and demand of the currency in question.