hello could you please help me answer this question? answer is not 51%

A firm has 1 million shares outstanding with a book value per share of $10 per share. The stock sells for a price of $20 per share. The firm's bonds have a par value of $8 million and are currently selling at a price of 120 percent of par. What is the appropriate proportion of equity to use in the WACC calculation? Multiple Choice 71.4 percent 67.6 percent 48.0 percent 51.0 percent 55.6 percent