Clare purchases a single product for $15 and sells it for $30. Forecasted sales for the next three months are July 4,000 units, August 6,000 units, September 7,500 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 1,500 units. What are budgeted purchases in units for August?