help me calculate the cost, thx

Mask-Up Davis uses process costing for its general sales line. Using the table below, calculate the Cost Per Equivalent Unit for Materials. Work in Process Inventory, February 1 Materials Completed, February 1 Conversion Completed, February 1 Materials, February 1 Conversion, February 1 Work in Process Inventory, February 28 Materials Completed. February 28 Conversion Completed, February 28 Materials Added During February Conversion Costs Added During February Masks Transferred to Finished Goods 100 masks 75% 30% $250 $100 300 masks 70% 35% $400 $150 400 masks $0.66 per equivalent unit $1.02 per equivalent unit $1.07 per equivalent unit $1.63 per equivalent unit