Cullumber Manufacturing Inc. provides you with the following data for the month of June: Prime costs were $195,500, conversion costs were $140,700, and total manufacturing costs incurred were $268,000. Beginning and ending work in process inventories were equal. Selling and administrative costs were $238,000. (a) Your answer is incorrect. What were the total costs of direct materials used, direct labour, and manufacturing overhead? Direct material costs Direct labour costs Manufacturing overhead costs $