Problem: Bertoli Company has a process costing system in which the weighted-average method is used. the company adds all materials at the beginning of the process in the Assemby Department, which is the first of two stages of its production process. Information concerning the materials used in the Assembly Department during August is as follows:
Units Material Costs
Work in process at August 1..................22,000 $11,000
Units started during August .................90,000 $46,120
Units completed and transfered to next
department during August ....................97,000
What was the material cost of the work in progress inventory at August 31?
a) $5,100
b) $7,650
c) $7,500
d) $11,220