Castaway Company Reports the Following First Year Production Cost Information

Castaway Company reports the following first year production cost information. $$\begin{array} { l l } \text { Units produced } & 53,000 \text { units } \\\text { Units sold } & 51,000 \text { units } \\\text { Sales price } & \$ 150 \text { per unit } \\\text { Direct labor } & \$ 8 \text { per unit } \\\text { Direct materials } & \$ 4 \text { per unit } \\\text { Variable overhead } & \$ 2,173,000 \text { in total } \\\text { Fixed overhead } & \$ 3,339,000 \text { in total } \\\text { Operating expenses } & \$ 1,000,000 \text { in total }\end{array}$$
(a.) Determine the net income using variable costing.
(b.) Determine the net income using absorption costing.