The GA-64112 company uses direct labor cost as its allocation base for its predetermined overhead rate. The company reports $ 2,040 for the ending balance of its work in process inventory. The company has two incomplete products that respectively used $ 400 and $ 200 of direct materials, and $ 300 and $ 500 of direct labor. Using these facts, what is the GA-64112 company's predetermined overhead rate as a percentage of direct labor cost? Multiple Choice 70% 80% 85% 90%