only part c please

A new computer system will require an initial outlay of $20,500, but it will increase the firm's cash flows by $4.400 a year for each of the next 7 years. a. Calculate the NPV and decide if the system is worth installing if the required rate of return is 10%. (Negative amount should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to 2 decimal places.) Answer is complete and correct. $ 921.04 Net present value Worth installing Yes b. Calculate the NPV and decide if the system is worth installing if the required rate of return is 15%. (Negative amount should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to 2 decimal places.) Answer is complete and correct. Net present value Worth installing $ (2,194.15) No c. How high can the discount rate be before you would reject the project? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Maximum discount rate %