Flagstaff Company has budgeted production units of 8,200 for July and 8,400 for August. The direct materials requirement per unit is 3 ounces (oz.). The company has determined that it wants to have safety stock of direct materials on hand at the end of each month to complete 20% of the units budgeted in the following month. There was 4,920 ounces of direct material in inventory at the start of July. The total amount of direct materials in ounces, to be purchased in July is?