Griffin Shoe Company records Sales Returns and Allowances, Sales Discounts, and Credit Card Discounts as contra-revenues. July 12 Sold merchandise to customer at factory store who charged the $5ee purchase on her American Express card. American Express charges a 1 percent credit card fee. Cost of goods sold was $375. July 15 sold merchandise to Customer T at an invoice price of $5,200; terms 3/10, n/30. Cost of goods sold wat $2,600. July 20 collected cash due from Customer T. July 21 Before paying for the order, a customer returned shoes with an invoice price of $1,300; cost of goods sold was $780. Complete the following table by entering the amounts of the effects of each transaction, including the related cost of goods sold. (Indicate decreases with a minus sign.) Complete the following table by entering the amounts of the effects of each transaction, including the related cost of goods sold. (Indicate decreases with a minus sign.) Transaction Net Sales Cost of Goods Sold Gross Profit July 12 July 15 July 20 July 21