问一道英文数学题,what is the present value of the following?$845 perpetuity discounted back to the present at 18%

问题描述:

问一道英文数学题,
what is the present value of the following?
$845 perpetuity discounted back to the present at 18%

什么是现值永久845美元的跟随者?贴现回到了现在在18%吗
我不会

翻译:
下面数值的现值是多少?
845美元养老金按18%的贴现率.
设现值为x
则,x(1+18%)=845
所以现值x=845/(1+18%)=716