For a company that uses process costing, Processing Department F had the following information for the most recent month: Units Beginning Work-in-Process Inventory (40 percent complete) 5,000 Units started during the month 18,000 Ending Work-in-Process Inventory (10 percent complete) 4,000 Materials and conversion are incurred uniformly throughout the process. What would be the equivalent units of production for conversion when using the weighted average costing method?