The Davidson Company uses a weighted average process costing system. The following information was reported for the Assembly Process for January. Materials are added at the beginning of the process and are 100%. Units: work in process, 1/1 units % complete for conversions 60,000 15% 105,000 started work in process, 1/31 40,000 20% Costs: Conversion beginning work in process current costs Materials S16,500 $643,500 $ 33,250 $332,500 What is the cost per unit for materials? $4.00 $3.90 $4.96 $2.75 none of the above 20 Next