Superior Micro Products uses a weighted-average process costing system. In January, their Delta Assembly Department completed 25,200 units and transferred them to the next department. The total costs for beginning work in process inventory and costs added during January were $688,068. The ending work in process inventory was 3,100 units, which were 70% complete for materials and 50% complete for labor and overhead. The costs per equivalent unit for materials, labor, and overhead in January are provided.