interest rate of 1.5%. What will be the return after 20 years? Please draw the cash flow diagram and use Excel macro to find the answer. (10 points) 2. If the interest rate drops to 1% per month, what will be the amount of money you need to invest every month in order to get the same amount of return in (1), but at the end of 10 years? Please use Excel macro to find the answer. (10 points) Write down the know values and how you calculate the answer in the blank area below