$($Total $10$ points$)$

The point where the NPV profiles intersect occurs approximately at an $9$ percent discount rate. How can we precisely identify this crossover point? The crossover rate, defined as the discount rate that equalizes the NPVs of two projects, helps us in this regard. To illustrate, let's consider the following scenario with two mutually exclusive investments:

What is the crossover rate?

$\backslash$table$[[$Year$,$Investment A$,$Investment B$],[0,-$$$200,-$$$500$