Almond Corporation is expected to pay a RM$2\mathrm{.}50$ dividend at year end $($D$1=$ RM$2\mathrm{.}50),$ the dividend is expected to grow at a constant rate of $5\mathrm{.}50\%$ a year, and the common stock currently sells for RM$67\mathrm{.}50$ a share. The before$-$tax cost of debt is $7\mathrm{.}50\%,$ and the tax rate is $40\%.$ The target capital structure consists of $45\%$ debt and $55\%$ common equity. What is the company$$s weighted average cost of capital $($WACC$)$ if all the equity used is from retained earnings?