The Budget for Department 6 of Cardinal Company for the Current

The budget for Department 6 of Cardinal Company for the current month ending March 31 is as follows: $$\begin{array} { l l } \text { Materials } & \$ 208,000 \\\text { Factory wages } & 265,000 \\\text { Supervisory salaries } & 67,800 \\\text { Depreciation of plant and equipment } & 35,000 \\\text { Power and light } & 22,500 \\\text { Insurance and property taxes } & 15,500 \\\text { Maintenance } & 9,700\end{array}$$ During March, the costs incurred in Department 6 of Cardinal Company were materials, $204,000; factory wages, $285,000; supervisory salaries, $63,600; depreciation of plant and equipment, $35,000; power and light, $21,360; insurance and property taxes, $14,400; maintenance, $9,456.
a) Prepare a budget performance report for the supervisor of Department 6 of Cardinal Company for the month of March.
b) Are there any significant variances 5% or greater) of the budgeted amounts that should be examined by the supervisor?