Isen Ouffitters Inc believes that its optima copita structure consists of 55% common equity and 45\%, debt, and its tax rate is 25%. Osen must raise additional capital to fund its upcoming expansion. The firm will have 54 million of retained earnings with a hat a proposed expansion would require an investment of $8.0 million. What is the Wacc for the las dolar rased to complete the expansion? Round your answer to troo decimal places. %