很多同學在開始學習present value時,常常會不知道什么時候查復利現值系數表,什么時候查年金現值系數表;也常常不確定這個折現究竟折現到什么時候;這些基礎的問題沒有弄清楚,當題目稍微變得不那么常規時,很多同學就不知道該怎么處理了。
那么針對這些問題,給大家在下面的表格中總結了三種常見的折現問題及其處理方法。
常見PV模型以及解決方法

題目
接下來,分別給三個題目讓大家練習一下:
例1:An investment of$20,000 is expected to yield$5,000 in the first year,$10,000 in the second year,$8,000 in the third year.Calculate the net present value of the investment opportunity if the cost of capital is 5%
NPV=5000*復利現值系數(5%,1)+10000*復利現值系數(5%,2)+8000*復利現值系數(5%,3)-20000

=5000^0.952+10000^0.907+8000^0.864-20000
=$742
例2:An investment of$50,000 is expected to yield$5,000 for ten years.Calculate the net present value of the investment opportunity if the cost of capital is 5%.
NPV=50000*年金現值系數(5%,10)-50000

=5000^7.722-50000
=-$11390
例3:An investment of$50,000 is expected to yield$5,000 per annum in perprtuity.Calculate the net present value of the investment opportunity if the cost of capital is 5%.
NPV=5000/5%-50000
=$50000
以上,就是針對present value中三種常見問題的總結