could someones explain the solution for me? thank you

E6-2 (Algo) Reporting Net Sales with Credit Sales, Sales Discounts, and Credit Card Sales L06-1 The following transactions were selected from the records of OceanView Company: July 12 Sold merchandise to customer R, who charged the $3,200 purchase on his Visa credit card. Visa charges Oceanview al percent credit card fee. 15 Sold merchandise to customer s at an invoice price of $10,300; terms 3/10, 1/30. 20 Sold merchandise to Customer T at an invoice price of $4,300; terms 3/10, 1/30. 23 Collected payment from Customer s from July 15 sale. Aug. 25 Collected payment from Customer T from July 20 sale. Required: Assuming that Sales Discounts and Credit Card Discounts are treated as contra-revenues, compute net sales for the two months ended August 31 Answer is complete but not entirely correct. Nel sales $ 17,330