How would you calculate the debt and equity of this company? I believe the debt is 162 and the equity is 329, but I don't understand how you get to 329.

Pennwalt 1974 1975 1976 1977 1978 Sales (Smillions) 641 714 777 835 921 Net Income (Smillions) 27 33 35 42 45 Earnings per share 52.81 53.25 $3.56 $4.23 $4.54 Dividends per share $1.24 $1.36 $1.54 52.25 $2.05 Dividend yield 7.4% 4.6% 4.9% 5.2% 6.7% Common stock prices High 530 538 539 543 Low 15 17 27 32 32 Close 17 28 33 39 33 Closing P/E 6.0 8.6 9.3 9.2 7.3 Total capitalization 371 441 469 500 524 % Debt 0.28 0.34 0.33 0.34 0.31 % Preferred stock % Common stock 0.72 0.66 0.67 0.66 0.69 Beta Interest coverage" 2.9 3.3 3.8 4.1 4.2 Bond rating AJA