Damon and Company uses the weighted-average method of process costing. On January 1, the units in work-in-process (WIP) inventory were 100% complete with respect to materials and 60% complete with respect to conversion. Materials costs in beginning WIP were $330,000, and conversion costs were $432,000. Damon provides the following additional information:

• The 100,000 units in ending work-in-process (EWIP) inventory on December 31 were 100% complete with respect to materials and 80% complete with respect to conversion.

• 990,000 units started in production. Costs added during the year were $2,970,000 for materials and $1,728,000 for conversion.

• During the year, 1,000,000 units were completed and transferred to finished goods.

There was no finished goods inventory on January 1. 800,000 units were sold.

Required:

a. How many units were there in beginning work-in-process (WIP) inventory on January 1?

b. Calculate the total equivalent units with respect to conversion.

c. Compute the cost per equivalent unit for materials.

d. What is the cost of the December 31, 20 × 1 work-in-process inventory?