The Following Is Allison Corporation's Contribution Format Income Statement for December

The following is Allison Corporation's contribution format income statement for December 2013:
$\begin{array}{|l|r|}\hline \text { Sales } & \$ 800,000 \\\hline \text { Less: Variable expenses } & 300,000 \\\hline \text { Contribution margin } & 500,000 \\\hline \text { Less: Fixed expenses } & \$ 400,000 \\\hline \text { Before-tax profits } & \$ 100,000 \\\hline\end{array}$
The company had no beginning or ending inventories.The company produced and sold 10,000 units in December 2013.
Required:
Assuming no change in either the cost structure or the average selling price,prepare a contribution format income statement for a January,2014 assuming production and sales of 7,500 units for Allison Corporation.