help please

Total gross sales for the period include the following: Credit card sales (discount 2%) $ 9,200 Sales on account (2/15, n/60) $ 10,400 Sales returns related to sales made on account were $200. All returns were made before payment. One-half of the remaining sales on account were paid within the discount period. The company treats all discounts and returns as contra-revenues. What amount will be reported on the income statement as net sales? Show your work in getting from Gross Sales to Net Sales