The Color Box uses a combination of common stock, preferred stock, and debt financing. The company wants preferred stock to represent 10% of the total financing. It also wants to structure the firm in a manner that will produce a weighted average cost of capital of 11.1%. The after-tax cost of debt is 4.6%, the cost of preferred is 7.9%, and the cost of common stock is 17.9%. What percentage of the firm's capital funding should be debt financing? (Do not round intermediate calculations. Round your final answer to two decimal places and express in percentage form. e.g., x.xx%