I am having difficulty finding the crossover rate and the NPV of projects X and Y @ 15% and 25%. I used excel to find the other answers and according to my homework software the answers that are posted above correct however the other answers were not correct using excel. How would I find the answer manually?

Thank You for your help! It is much appreciated.

Consider the following two mutually exclusive projects: Cash Flow Cash Flow Year -20,800 9,050 9,500 9,000 20,800 10,500 8,000 8,900 2 Calculate the IRR for each project. (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) IRR Project X Project Y 15.49 % 15.69 % What is the crossover rate for these two projects? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Crossover rate What is the NPV of Projects X and Y at discount rates of 0%, 15%, and 25%? (Negative amount should be indicated by a minus sign. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) Project X $ 6750 Project Y $ 6,600 Discount rate 15% 25%