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李羊羊羊羊 · 2024年02月13日

82.42/81.19 - 1 ，这里为什么减1

  1. CFA I
  2. Economics Analysis

NO.PZ2023071902000087

问题如下：

Question

A researcher compiles the following currency exchange data:

A/B C/B

Start of period 1.3578 110.24

Close of period 1.3286 109.52

For the duration, the closest percentage variation in the C/A cross-rate is:

选项：

A.–2.5%.

B.1.5%.

C.3.6%.

解释：

Solution

The C/A exchange rate at the beginning of the period is calculated as = 1/1.3578 × 110.24 =81.19

The C/A rate at the end of the period is = 1/1.3286 × 109.52 = 82.43

The percentage change in the C/A exchange rate for the period is therefore = 82.42/81.19 - 1 ≈ 1.5% which is approximately 1.5%

Exchange Rate Calculations

•

没看懂题目给的数据，不知道怎么计算

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1 个答案

笛子_品职助教 · 2024年02月13日

嗨，努力学习的PZer你好：


82.42/81.19 - 1 ，这里为什么减1 没看懂题目给的数据，不知道怎么计算


期初汇率81.42，期末汇率82.42，问期末的汇率相对期的汇率，涨幅多少。

计算方法是82.42/81.19 - 1 ≈ 1.5%

减1是因为要计算变动幅度。



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努力的时光都是限量版，加油！

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