Erna corp. has 7 million shares of common stock outstanding. the current share price is $73, and the book value per share is $8. erna corp. also has two bond issues outstanding. the first bond issue has a face value of $75 million, has a coupon of 8 percent, and sells for 98 percent of par. the second issue has a face value of $55 million, has a coupon of 9 percent, and sells for 107 percent of par. the first issue matures in 23 years, the second in 7 years. a. what are erna’s capital structure weights on a book value basis? (round your answer to 4 decimal places. (e. g., 32.1616)) equity/value debt/value b. what are erna’s capital structure weights on a market value basis