Rigby Ltd accumulates costs for its single product using process costing. Direct material is added at the beginning of the production process, and conversion activity occurs uniformly throughout the process. The following is a partially completed production report for May. Production report, May Physical units Percentage of completion with respect to conversion Equivalent units Direct materials Conversion Work in process, 1 May 25,000 40% Units started during May 30,000 55,000 Units completed and transferred out during May 35,000 35,000 35,000 Work in process, 31 May 20,000 80% 20,000 16,000 Total units accounted for 55,000 Direct material Conversion Total Work in process, 1 May $143,000 $474,700 $617,700 Costs incurred during May $165,000 $2,009,000 $2,174,000 Total costs to account for $308,000 $2,483,700 $2,791,700 Required: a) Complete the following process costing steps using the weighted average method: i Calculation of equivalent units. (3 marks) ii Calculation of unit costs. (3 marks) iii Analysis of total costs. (3 marks) b) journal entry to record the transfer of the cost of goods completed and transferred out during May.