刚做了一道数学题,题目是When Leo imported a certain item, he made a 7 percent import tax on the portion of the total value of the item in excess of$1,000.If the amount of the import tax that Leo paid was $87.50, what was the total value of the item? 按照我的理解是对超过1000的item加税,税额是总额的7%,但答案的意思是税额是超高1000部分的7%。。。。有点糊涂了。。。谢谢解答~