弱弱地问一下~关于这句话的语法错误

  在写OG11Argument的第2题，我的开头是这样写的

  Based on the assumption that the Apogee Company was more profitable than today by centralization, the argument claims that the company should close down its field offices and conduct all its operations from a single location.
        

  写完放在word里发现是绿线，显示有语法错误，但是我怎么都看不出来错在哪里，各位NN能不能帮我看看？

  谢过各位了！