GWD-3-18

xiao19870205

Q18:

Last year the price per share of Stock X increased by k percent and the earnings per share of Stock X increased by m percent, where k is greater than m.  By what percent did the ratio of price per share to earnings per share increase, in terms of k and m?

 

A.     k/m %

B.     (k-m) %

C.     [100(k-m)]/(100+k) %

D.     [100(k-m)]/(100+m) %

E.      [100(k-m)]/(100+k+m) %

Answer:

請問大大

解答是 D,  小弟我真的是 百思不解 為何 increased price 要減去 earning price?   然後earning price 要加上100?

肯定有個套路在裡面  請高手相助

感激!

yayajiaojiao

本来股价同收益的比为p/e，增加后为p(1+%k)/e(1+m%)，增长的百分比就是（p(1+k%)/e(1+m%)）/(p/e)-1