Oakes Company,which Has Only One Product,has Provided the Following Data

Oakes Company,which has only one product,has provided the following data concerning its most recent month of operations:
$\begin{array}{|l|r|}\hline \text { Selling price } & \$ 108 \\\hline \text { Units in beginning inventory } & 0 \\\hline \text { Units produced } & 1,100 \\\hline \text { Units sold } & 900 \\\hline \text { Units in ending inventory } & 200 \\\hline \text { Variable costs per unit: } &\\\hline \text { Direct materials } & \$ 28 \\\hline \text { Direct labour } & \$ 30 \\\hline \text { Variable manufacturing overhead } & \$ 7 \\\hline \text { Variable selling and administrative } & \$ 11 \\\hline \text { Fixed costs: } &\\\hline \text { Fixed manufacturing overhead }& \$ 14,300 \\\hline\text { Fixed selling and administrative }& \$ 1,800\\\hline\end{array}$

Required:
a)Prepare an income statement for the month using the contribution format and the variable costing method.
b)Prepare an income statement for the month using the absorption costing method.