Question

suppose your firm is planning to invest in a project that will generate the following income stream:a negative flow $250000 per year for 5 years, a positive floww of $550000 in year 6, and a positive flow of $600000 per year in the year 7 through9. What is the present value of this income if the appropriate discount rate is 11% for the first 3 years and 12% threrafter?