R-Ball Corporation manufactures deluxe and standard racquetball racquets. R-Ball's total overhead costs consist of assembly costs and inspection costs. The following information is available: Cost Deluxe Standard Total Cost Assembly 500 mach. hours 500 mach. hours $30,000 Inspections 350 150 $50,000 2,100 labor hours 1,900 labor hours R-Ball is considering switching from one overhead rate based on labor hours to activity-based costing. Using activity-based costing, how much assembly cost is assigned to deluxe racquets