olsen Outfitters Incorporated believes that is optimal capital structure consists of $65\%$ common equity and $35\%$ debt and is tax rate is $25\%.$ Olsen must raise additional Capital to fund its upcoming expansion. The Firm will have $$2$ million of retained earnings with a cost of Rs equals $13\%.$ new common stock in an amount of $8$ million dollars would have a cost of r equals $15\mathrm{.}5\%$ furthermore Olsen can raise up to $4$ million dollars of debt at an interest rate of Rd equals $11\%$ and an additional $5$ million dollars of debt at Rd equals$15\%.$ the CFO estimates that a proposed expansion would require an estimate of $11\mathrm{.}2$ million dollars. what is the wacc for the last dollar raised to complete the expansion. round your answer to two decimal places.