pls help

Clare purchases a single product for $18 and sells le for $38. Forecasted sales for the next three months are July 4,100 units, August 6,700 units. September 8,400 units. Clare's policy is to have an ending Inventory of 40% of the next month's sales needs on hand. July 1 Inventory is projected to be 1,640 units. What are budgeted purchases In units for August? Multiple Choice 680 units 6,020 units 11.740 units O 7,380 units