Contribution Margin Income Statements for Two Competing Companies Are Provided

Contribution margin income statements for two competing companies are provided below: $\begin{array}{c}\begin{array}{|l|}\hline \\\hline \text {Revenue}\\\hline \text {Less variable costts}\\\hline \text {Contribution margin}\\\hline \text {Less fixed costs}\\\hline \text {Net income}\\\hline \end{array}\begin{array}{l|}\hline \text { Yin Company }\\\hline \$ 750,000 \\\hline 300,000 \\\hline \$ 450,000 \\\hline 405,000 \\\hline \$ 45,000\\\hline\end{array}\begin{array}{l|}\hline\text { Yang Company }\\\hline \$ 750,000 \\\hline 525,000 \\\hline \$ 225,000 \\\hline 180,000 \\\hline \$ 45,000\\\hline\end{array}\end{array}$
Required:
1)Show each company's cost s