A firm is considering a project and plan to obtain a target capital structure with $75,843 of debt at a before-tax cost of 9.6%, $33,576 of preferred stock at a cost of 10.7% and $58,914 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)