Marquis Company uses a weighted average perpetua/inventory system and has the following purchases and sales Units Sold at Retail Date August 2 August 18 August 29 Activities Purchase Purchase Sales Units Acquired at Cost 10 units @ $34 - $340 15 units @ $36 = $540 12 units sold What is the amount of the cost of goods sold for this sale? (Round average cost per unit to 2 decimal places.)