A company uses a perpetual inventory accounting system and the gross method of accounting for sales. It had the following transactions during the month of July.July $3$ Sold merchandise to a customer on credit for $$600,$ terms $1/10,$ n$30.$ The cost of the merchandise sold was $$350.$July $4$ Sold merchandise to a customer for cash of $$425.$ The cost of the merchandise was $$250.$July $6$ Sold merchandise to a customer on credit for $$1,300,$ terms $2/10,$ n$/30.$ The cost of the merchandise sold was $$750.$July $8$ The customer from July $3$ returned merchandise with a selling price of $$100.$ The cost of the merchandise returned was $$55.$July $15$ The customer from July $6$ paid the full amount due, less any discounts.July $31$ The customer from July $3$ paid the full amount due, less the return.