Calculate the Macaulay duretion of an B\%, $1,000 par bond that matures in three years if the bond's YTM is 10% and interest is pald semiannualy. a. Calculate this bond's modified duration. Do not round intermediate calculations. Alound your answer to two decimal places. years 6. Assuming the bond Y YTM goes from 10% to 9.5%, calculate an estimate of the price change. Do nat round intermediate calculabons. Round your answer to three decima piaces. Use a minus sion to enter negative value, if any