Croftmark Co. began operations on May 1, 2013. Its Work in Process Inventory account on May 31 appeared as follows:

The company applies overhead on the basis of direct labor cost. Only one job was still in process on May 31. That job had $ 37,725 in direct material and $ 18,100 in direct labor cost assigned to it.
a. What was the predetermined overhead application rate?
b. What was the balance in WIP Inventory at the end of May?
c. What was the total cost of jobs completed inMay?

Work in Process Inventory Direct material Direct labor Applied overhead 138,600 Cost of completed jobs 96,000 34,400