A firm is considering a project and plan to obtain a target capital structure with $75,723 of debt at a before-tax cost of 9.6%, $89,067 of preferred stock at a cost of 10.7% and $61,350 of equity at a cost of 13.5%. The firm faces a tax rate of 40%. What will be the firm's weight on preferred stock? (your answer should be in percentages so 10% would be entered as 10)