Please fill in the rest or atleast give the formula. Thank you.

\begin{tabular}{|c|c|} \hline Percent Financed with Debt (wd) & Before-tax Cost Debt (rd) \\ \hline \end{tabular} \begin{tabular}{|r|l|} \hline \multicolumn{2}{|c|}{ Additional Data } \\ \hline Risk-free rate (rRF) & 2.30% \\ \hline Market risk premium (RPM) & 9.34% \\ \hline Unlevered beta (bU) & 0.84 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline 0.0% & 0.00% \\ \hline 10.0% & 2.54% \\ \hline 18.5% & 3.36% \\ \hline 26.3% & 4.29% \\ \hline 33.3% & 5.98% \\ \hline 41.0% & 8.94% \\ \hline 50.0% & 10.65% \\ \hline 66.7% & 14.98% \\ \hline \end{tabular} \begin{tabular}{|r|r|r|r|r|r|r|} \hline Debt/Value Ratio (wd) & Equity/Value Ratio (ws) & Debt/Equity Ratio (wd/ws) & After-tax Cost of Debt & Levered Beta (bL) & Cost of Equity (rs) & WACC \\ \hline 0.00% & 0.00% & #DIV/0! & & & & \\ \hline 10.00% & 2.54% & 393.70% & & & & \\ \hline 18.50% & 3.36% & 550.60% & & & & \\ \hline 26.31% & 4.29% & 613.17% & & & & \\ \hline 33.30% & 5.98% & 556.86% & & & & \\ \hline 41.00% & 8.94% & 458.61% & & & & \\ \hline 50.00% & 10.65% & 469.48% & & & & \\ \hline 66.70% & 14.98% & 445.26% & & & & \\ \hline \end{tabular} WACC at the optimal debt ratio = Optimal debt ratio =