NO.PZ2019120301000075
问题如下：
Question
选项：
A.Company X
B.Company Y
C.Company Z
解释：
Solution
A is correct. As calculated below, Company X has the highest, and thus the weakest, debt-to-equity ratio.
B is incorrect because Company Y has the lowest debt-to-equity ratio at 21.5%/44.3% = 48.5%.
C is incorrect because Company Z’s debt-to-equity ratio is 23.4%/39.0% = 60.0%, lower than Company X’s.
这个ratio的分子total debt的公式是什么
