How much are unit production costs for materials and conversion costs for May if the weighted average method is used? D. $2.00 $3.00 $66,000/22,000=$3.00. How much is the total manufacturing cost per unit? B. $6.67 c. $6.00 d. $8.00 Use the following information to answer questions 102103. Materials costs of $200,000 and conversion costs of $214,200 were charged to a processing department in the month of September.