Glenville Company has the following information for the month of April:

Cost of direct materials used in production $ 280,000 Direct labor $ 324,000 Factory Overhead $ 188,900 Production in process inventory, April 1 $ 72,300 Production in process inventory, April 30 $ 76,600 Finished Goods Inventory, April 1 $ 39,600 Finished Goods Inventory, April 30 $ 41,200

For the month of April, determine the cost of sales.