有看到一个题目对答案有点疑问
是2011年CFA L1
The price of a good falls froms $15 to $13. Given this decline in price,
the quantity demanded of the good rises from $100 to $120 unites.
The prices eslactity of demanded for good is closed to ?
答案给接近 1.3
我算出来是接近 1.5
请问 是我计算错误吗?
谢谢