12 You have collected the following information about a company 100,000 100,000 60,000 72,000 220,000 110,000 380,000 282,000 a. What is the weighted average cost of capital using market values? Source of capital Market value Book value After-tax cost Long-term debt Preferred stock Common stock Total 0.08 0.11 0.14 he cost of capital b. What is the weighted average cost of capital using book values