老师这题不用考虑美元贬值的影响吗？

问题如下：

(2) Petersen knows that revenues in the children’s products division have suffered because of declining birth rates in Europe and North America, but he believes that if Rhine can maintain the operating margin for this division then overall company profitability should not be affected.

Corinna Berg, another analyst with the fund, reminds Petersen that during 2013, the U.S. dollar weakened against the euro by 4% and that 50% of the sales in the recreational products division are sold in the United States.

If the children's products division had been able to maintain its 2012 operating margin in 2013, the company's overall operating margin in 2013, compared to 2012, would have been:

选项：

the same.

lower.

higher.

解释：

Apply the 2012 operating margin for the children’s products division to the 2013 revenues for the division to determine what the 2013 overall operating profit margin would have been if the margin had been maintained, and then compare it with the 2012 overall operating profit margin.

Even if the children’s products division had maintained its operating margin in 2013, the overall company operating margin would still have decreased slightly (7.7% versus 7.9%).