A bond's credit rating provides a guide to its price. In December 2020, Aaa bonds yielded 5.4%, and Baa bonds yielded 6.4%. Some bad news causes a 10% five-year bond to be unexpectedly downrated from Aaa to Baa. Assume face value is $1,000. Note: Do not round intermediate calculations. Round your answers to 2 decimal places. a. What is the bond's price if it is rated as Aaa? b. What is the bond's price if it is rated as Baa