Olympic Enterprises has the following inventory data: Date June 1 Beginning inventory Quantity 5 unit cost $52 Date June 4 Purchase Quantity 10 unit cose $55 June 7 Sale Quantity 12 Unit cost? Date June 11 Purchase Quantity 9 Unit cost $58 June 14 Sale Quantity 8 Unit cost? Assuming average cost, what is the cost of goods sold for the June 7 sale?