Finding the rate at which a project has maximum NPV

How do you find the interest rate at which an investment project has a maximum NPV?

And how would you use such a rate to make a decision about the investment?

I assume it would be acceptable if the rate, at which project has maximum NPV, is higher than the company's cost of capital (WACC) (is this so or am I wrong on this one)

Would you also compare such a rate with IRR?

Can't teach here...no blackboard and the likes!

Ever heard of Googling?
NPV and IRR -- Measures for Evaluating Investments

Better put some sample problems so that you can fully understand the things to be discuss, you can actually understand that easily if you will put some samples.


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