What is the total contract value of these bookings

What is the overall contribution margin ratio?

Department A had 15,000 units in work in process that were 60% completed as to labor and overhead at the beginning of the period; 45,600 units of direct materials were added during the period; 42,500 units were completed during the period, and 11,000 units were 80% completed as to labor and overhead at the end of the period. All materials are added at the beginning of the process. The first-in, first-out method is used to cost inventories. The number of equivalent units of production for conversion costs for the period was ____ Units.