The following forecasted sales pertain to Rapid City: Month Sales $160,000 June 200,000 July August 120,000 September 80,000 Finished goods inventory as of May 31 6,000 units Rapid City has a selling price of $5 per unit and expects to maintain ending inventories equal to 25 percer of next month's sales. What is the budgeted beginning balance in units for finished goods inventory on August 1? 8,000 units 6,000 units 10,000 units 6,400 units