In a process with 830 units of beginning Work in Process, the company completed and transferred out 10300 units during a period. There were 5000 units in the ending Work in Process that were 45% complete as to conversion costs. Materials are added 70% at the beginning of the process and 20% when the units are 80% complete. How much is equivalent units of production for the period for material costs if the weighted-average method is used?