有看到一個題目對答案有點疑問
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 ?
答案給接近 1.3
我算出來是接近 1.5
請問 是我計算錯誤嗎?
謝謝