using the $2005$ accounting and market information for ValueCo

below, determine the weighted average cost of capital $($WACC$).$

Information:

Debt to total capitalisation $30\%$

Cost of debt $2\mathrm{.}5\%$

Tax rate $38\%$

Risk$-$free rate $1\%$

Market risk$-$premium $5\%$

Size premium $1\mathrm{.}30\%$

Unlevered beta $1\mathrm{.}20$