Franklin Corporation produces a single product. The product is both large and expensive, so few units are produced in any month. The production process requires all material to be brought to the shop floor before any work begins. The material is then processed and assembled and then transferred to finished goods inventory. Every unit is completely identical in specification and use, and no customization is possible. During March, only three units were started and these were labelled Unit 03-01, Unit 03-02, and Unit 03-03. There was no beginning inventory of any kind on March 1. Records from the raw material store and employee time records show the following requisitions and direct labor costs. Unit 03-01 Unit 03-02 Unit 03-03 Direct Material $ 12,600 11,600 13,600 Direct Labor $ 50,600 33,600 21,600 The difference in the material cost represent the historical cost of material purchased at different times. The difference in labor cost represent the difference in seniority (not skill) of the individual employees. Overhead for the month of March totaled $158,700. During March, Unit 03-01 and 03-02 were completed and transferred to finished goods. Unit 03-03 was still in process on March 31.