4. The assembly division of Fenton Watches, Inc., uses the weighted-average method of process costing. Consider the following data for the month of May 2014: Physical Units (Watches) 80 Direct Materials Conversion Costs $91,040 Beginning work in process (May 1)* Started in May 2014 Completed during May 2014 Ending work in process (May 31)* Total costs added during May 2014 * Degree of completion: direct materials, 90%; conversion costs, 40% **Degree of completion: direct materials, 60%; conversion , 30% S493,360 500 460 120 S3,220,00 $1,392,000 a. Compute equivalent units for direct materials and conversion costs. Show physical units in the first column of your schedule. (Use Weighted-average method.) b. Suppose the assembly division of Fenton Watches, Inc uses the FIFO method of process costing instead of weighted average method. Compute equivalent units for direct materials and conversion costs. Show physical units in the first column of your schedule