Petrenko Corporation has outstanding 2,240 $1,000 bonds, each convertible into 50 shares of $14 par value common stock. The bonds are converted on December 31, 2012, when the unamortized discount is $30,000 and the market price of the stock is $21 per share. Record the conversion using the book value approach.

Western electric has 32,000 shares of common stock outstanding at a price per share of $79 and a rate of return of 13.00 percent. the firm has 7,300 shares of 7.80 percent preferred stock outstanding at a price of $95.00 per share. the preferred stock has a par value of $100. the outstanding debt has a total face value of $404,000 and currently sells for 111 percent of face. the yield to maturity on the debt is 8.08 percent. what is the firm's weighted average cost of capital if the tax rate is 39 percent?