dumping profit margin meaning in English

倾销差价,倾销幅度
倾销差价，倾销幅度

Commercial department made a survey of whether there existed a dumping of these products investigated and what the dumping profit margin was ; whether the products investigated had damaged the mainland industry of china and what the grade was , and the causality between dumping and damage
商务部对被调查产品是否存在倾销和倾销幅度,被调查产品是否对中国大陆产业造成损害及损害程度以及倾销与损害之间的因果关系进行了调查