Ingram manufactures cell phones. The conversion costs to produce cell phones for November are added evenly throughout the process in the Assembly Department. The company uses the weighted-average method. For each of the following separate assumptions, calculate the equivalent units of production for conversion costs in the ending Work-in-Process Inventory for the Assembly Department 2, 22,000 cell phones were 25% complete First, determine the formula for calculating equivalent units of production. (Abbreviation used: WIP Work-in-Process Inventory) 11,000 cell phones were 75% complete Equivalent units of production