Glass Corp. uses a process costing system (first-in, first-out). Data for the month of March is as follows: Beginning work-in-process (WIP) inventory (80% complete as to 25,000 units materials and 40% complete as to conversion costs) Units completed in March 67,000 units Ending WIP inventory (65% complete as to materials and 25% complete 18,000 units as to conversion costs) Materials Conversion costs Costs in beginning inventory $160,000 $240,000 Costs added during March 513,625 773,080 Required: Calculate the total cost of units completed during March. (6 marks)