Given the information provided below, what is this company's WACC?

Total liabilities $=$ $$225,000$

Total shareholder's equity $=$ $$475,000$

Current assets $=$ $$135,000$

YTM on company bonds $=6\mathrm{.}8\%$

Risk$-$free rate $=4\mathrm{.}5\%$

CAPM $=11\mathrm{.}5\%$

Tax rate $21\mathrm{.}0\%$