if my calculations are correct with respect to the new information, all I have to do is complete my paper by five.

参考译文：如果关于这些新的信息，如果我的计算是正确的，我必须要做的所有事情就是在5点钱完成我的论文。

解答如下：

提问网友理解发生错误，with是和后面构成搭配即“with respect to关于”

with regard to =关于

Try to view situations more objectively, especially with regard to work. 

要尽量客观地分析情况，尤其是在工作上。

The department is reviewing its policy with regard to immunisation.  

这个部门正在审度其有关疫苗接种的政策。

With regard to hardness, the diamond is in a class by itself.  

讲硬度, 金刚钻是独一无二的.