Answer:
The company's cost of preferred stock is 7.56%
Step-by-step explanation:
The company's cost of preferred stock is the return that the company pays to owners of deferred stock, which is expressed dividend divided the price of the preferred stock
Cost of preferred stock=$3.78/$50
cost of preferred stock=7.56%
The marginal rate of tax is not considered since preferred stocks are not tax deductible unlike bonds whose cost can be computed pre-tax(before tax is considered ) and after-tax (when has been factored in) as bonds are tax deductible.
The implication of tax deductibility is that such interest on bonds is deducted from revenue before tax is computed, which lowers tax payable.