At the present time, Perpetualcold Refrigeration Company (PRC) has 5-year noncallable bonds with a face value of $1,000 that are outstanding. These bonds have a current market price of $1,050.76 per bond, carry a coupon rate of 10%, and distribute annual coupon payments. The company incurs a federal-plus-state tax rate of 25%. If PRC wants to issue new debt, what would be a reasonable estimate for its after-tax cost of debt (rounded to two decimal places)? (Note: Round your YTM rate to two decimal place.)

5.22%

6.53%

7.51%

5.88%