Bramble Computer Shop begins operations on June 1 and uses a perpetual inventory system. During June, the company had the following purchases and sales for its Model 10 Fastback Computer System Purchases Units Unit Cost 6 $2200 Sales (Units) Date June 1 5 9 16 3 11 $2600 5 Using the FIFO cost formula, the amount allocated to cost of goods sold for June is $17600 O $18400. 520800 $23400