Compute the equivalent units for mays activity for the

Question

Kalox, Inc., manufactures an antacid product that passes through two departments. Data for May for the first department follow:

The beginning work in process inventory was 80% complete with respect to materials and 75% complete with respect to labor and overhead. The ending work in process inventory was 60% complete with respect to materials and 20% complete with respect to labor and overhead.

Required: 

Assume that the company uses the weighted-average method of accounting for units and costs.
1. Compute the equivalent units for May's activity for the first department. 
2. Determine the costs per equivalent unit for May.