Please solve using an excel formula such as =FV or =price.

Five years ago, a company issued 20-year, 6.0\% semiannual coupon bonds at par. Today, the bonds are quoted at 101.5. What is the firm's oretax cost of debt? Five years ago, a company issued 20-year, 6.0\% semiannual coupon bonds at par. Today, the bonds are quoted at 101.5. What is the firm's oretax cost of debt