Selo Imports uses flexible budgeting for the control of costs. The company’s annual master budget includes $324,000 for fixed production supervisory salaries at a volume of 180,000 units. Supervisory salaries are expected to be incurred uniformly throughout the year. During the month of September, 15,750 units were produced, and production supervisory salaries incurred were $28,000. A performance report for September would reflect a budget variance of