一件衣服原价450元,降价后卖360元,这件衣服比原价低了百分之几?
一件衣服原价450元,降价后卖360元,这件衣服比原价低了百分之几?
数学人气:785 ℃时间:2019-09-30 20:34:22
优质解答
450减360等于90元,90除以450等于0.2也就是降级百分之20
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