explain in detail please how to calculate

Question 1 Saleem Corporation uses the weighted average method in its process costing system. Data concerning the first processing department for the most recent month are listed below: Beginning work in process inventory: Units in beginning work in process inventory.. Materials costs. Conversion costs. Percent complete with respect to materials. Percent complete with respect to conversion Units started into production during the month Units transferred to the next department during the month Materials costs added during the month Conversion costs added during the month Ending work in process inventory: Units in ending work in process inventory Percent complete with respect to materials. Percent complete with respect to conversion 400 $3,100 $3,900 55% 25% 7,200 6,600 $85,800 $248,200 1,000 85% 70% Note: Your answers may differ from those offered below due to rounding errors. In all cases, select the answer that is the closest to the answer you computed. To reduce rounding error, carry out all computations to at least three decimal places. You are required to calculate: a. the equivalent units of production for materials and conversion b. the cost per equivalent unit for material and conversion c. the total cost transferred from the first processing department to the next processing department during the month d. the cost of ending work in process inventory in the first processing department according to the company's cost system