In the case of the internal rate of return calculation, a net presentvalueof 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。
2
To accommodate cash flow fluctuations, you can adjust the ROI calculation to include the net PresentValue (NPV) of the net benefits divided by the NPV of the implementation costs.