Complete Each of the Following Contribution Format Income Statements by Supplying

Complete each of the following contribution format income statements by supplying the missing numbers.
$\begin{array}{lccc}&\textbf { Blue Co. } && \textbf {Red, Inc. } \\\\\text { Sales revenue } & ? & & \$ 45,000 \\\text { Variable costs } & \underline{21,000} & & \underline{\quad\quad?\quad\quad} \\\text { Contribution margin } & 9,000 & & 25,000 \\\text { Fixed costs } & \underline{\quad\quad?\quad\quad} & & \underline{12,000} \\\text { Operating income } & 2,500 & & ? \\\text { Income taxes } &\underline{\quad\quad?\quad\quad} && \underline{4,000} \\\text { Net income } & \underline{\underline{\$ 1,750}} &&\underline{\underline{\quad\quad?\quad\quad}}\end{array}$