1. The basic WACC equation The calculation of WACC involves calculating the weighted average of the required rates of return on debt, preferred stock, and common equity, where the weights equal the percentage of each trpe of financing in the firm's overalt capital structure. is the symbol that represents the before-tax cost of debt in the weighted average cost of capital (WACC) equation. Avery co, has $1.1 milison of debt, $2 million of preferred stock, and $3.3 milion of common equity. What would be its weight on debt? 0.17 0.52 0.25 0.31