NO.PZ2023061903000019
问题如下：
Q. Over the past month, the Swiss franc (CHF) has depreciated 12 percent against the British pound (GBP). How much has the pound sterling appreciated against the Swiss franc?选项：
A.12 percent B.Less than 12 percent C.More than 12 percent解释：
C is correct. The appreciation of the British pound against the Swiss franc is the inverse of the 12 percent depreciation of the Swiss franc against the pound sterling: [1/(1 – 0.12)] – 1 = (1/0.88) – 1 = 0.1364, or 13.64%.
请讲一下这个知识点
