ashton, inc.has the following cost data for product x: direct materials $43 per unit direct labor 58 per unit variable manufacturing overhead 11 fixed manufacturing overhead 15,000 per year. calculate the unit product cost using absorption costing and variable costing when production is 500 units , 1000 units, and 1500 units. select the labels and enter the amounts to compute the unit product cost using absorption costing (if a box is not used in the table, leave the box empty. do not select alabel or enter a zero.)