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PMP試験に出てくるNPVを計算してみよう!

Posted at

NPVとは

Net Present Valueのことである。「正味現在価値」と訳される。
期間ごとに現在価値に換算する!

NPVの例

プロジェクトコスト:1000万円
1年目の利益:100万円
2年目の利益:200万円
3年目の利益:300万円
利率:5%
の場合のNPVは-464.2万円

計算方法

NPV=
-1000万円/(1.05)^0
+100万円/(1.05)^1
+200万円/(1.05)^2
+300万円/(1.05)^3
=-464.2万円

pythonで確認

$ python3
Python 3.7.3 (default, Mar  6 2020, 22:34:30) 
[Clang 11.0.3 (clang-1103.0.32.29)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> -1000 + 100/1.05 + 200/(1.05**2) + 300/(1.05**3)
-464.204729510852
>>> 


よかったよかった

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