> Weighted average cost of capital help?

Weighted average cost of capital help?

Posted at: 2014-12-05 
Market value of Common = 10.4 mil shs @ 12.00, or $124.8 mil

Market value of Bonds = 56.0 x 1.02, or 57.12 mil

Total Capital = 181.92 mil

Debt = 57.12 / 181.92, or .314

Equity = 124.8 / 181.92, or .686

14. Suppose a firm has 10.4 million shares of common stock outstanding with a par value of $1.00 per share. The current market price per share is $12.00. The firm has outstanding debt with a par value of $56.0 million selling at 102% of par. What capital structure weight would you use for debt when calculating the firm's WACC?

A) 0.157

B) 0.314

C) 0.686

D) 0.739

E) 0.843

I need some help in solving this problem. I am more concerned with the process of solving it than the answer itself. I'm just not sure where to start... Thanks in advance!