RedEx Shipping determined the rate to apply overhead based on direct labor hours would be $5.40, and based on machine hours would be $4.20. Job 664 used $26.00 of direct materials, 2.5 machine hours, and 4 hours of direct labor at a cost of $14 per hour. How much is the manufacturing cost of job 664 if RedEx Shipping applies overhead based on machine hours? a. $92.50
b. $10.50
c. $21.60
d. $103.60

Aaron corporation, which has only one product, has provided the following data concerning its most recent month of operations: selling price $ 102 units in beginning inventory 0 units produced 4,900 units sold 4,260 units in ending inventory 640 variable costs per unit: direct materials $ 20 direct labor $ 41 variable manufacturing overhead $ 5 variable selling and administrative expense $ 4 fixed costs: fixed manufacturing overhead $ 64,200 fixed selling and administrative expense $ 2,900 the total contribution margin for the month under variable costing is: