Consider the series of cash flows in the prior problem. Can you find the discount rate that makes the NPV of the cash flows equal of $7,500 ? Hint 1: Consider the formula that you would write to compute the NPV of the cash flows as given, this this formula be FNPV; write this formula using r for the unknown rate. Write the equality FNPV =$7,500, then "move" the $7,500 to the LHS of the equation to get FNPV 7,500=0. Combine the $7,500 term with the term from FNPV to which is is closest to in timing. Use the resulting equation to determine r. Hint 2: You should follow hint 1 to understand the logic of the solution, but once you understand what you need to do, you can use the calculator to solve the problem. Use at least 5 decimals precision in all your calculations and enter the answer below in percentages (i.e. 5 for five percent, not as 5% )