Based on the information given the WACC is 12.75%.
Using this formula
WACC = (Weight of debt ×After-tax cost of debt) + (Weight of preferred ×Cost of preferred) + (Weight of common equity × Cost of common equity)
Let plug in the formula
WACC = (0.40× 0.06) + (0.15×0.075) + (0.45 × 0.115)
WACC=0.024+0.01125+0.05175
WACC =0.1275×100
WACC =12.75%
Inconclusion the WACC is 12.75%.
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