So this chapter’s first task is to defineand explain net present value, rate of return, and opportunity cost of capital.
因此本章的第一个任务就是定义和解释净现值、回报率和资本的机会成本。
For internal software projects, return is either calculated in terms of the 'Net Present Value' of the project, or in terms of an internal rate of return.
对内部软件项目来说，收益或是以项目的‘净现值’计算，或是以内部收益率计算。
In the case of the internal rate of return calculation, a net present value of zero is assumed, and the internal rate of return needed to produce this is computed.
在对内部收益率的计算中，净现值被设为零，要计算的是使净现值为零的内部收益率。
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