Problem 21-3A (Static) Flexible overhead budget; materials, labor, and overhead variances; and overhead variance report LO P1, P2, P3, P4 [The following information applies to the questions displayed below.] Antuan Company set the following standard costs per unit for its product. The standard overhead rate ( $18.50 per direct labor hour) is based on a predicted activity level of 75% of the factory's capacity of 20,000 units per month. Following are the company's budgeted overhead costs per month at the 75% capacity level. Required: 1. Prepare flexible overhead budgets for October showing amounts of each variable and fixed cost at the 65%,75%, and 85% capacity levels