Perkins Company Provides the Following Data Developed for Its Master

Perkins Company provides the following data developed for its master budget: $\begin{array}{ll}\text { Sales price } & \$ 11.00 \text { per unit } \\\text { Costs: } & \\\text { Direct materials } & \$ 3.00 \text { per unit } \\\text { Direct labor } & \$ 4.25 \text { per unit } \\\text { Variable overhead } & \$ 0.50 \text { per unit } \\\text { Factory depreciation } & \$ 12,000 \text { per } \\& \text { month } \\\text { Supervision } & \$ 11,000 \text { per } \\& \text { month } \\\text { Selling expense } & \$ 0.25 \text { per unit } \\\text { Administrative cost } & \$ 9,000 \text { per month }\end{array}$
Required:
Prepare flexible budgets for sales of 20,000, 22,000 and 24,000 units. Use a contribution margin format.