The Franklin Company uses the direct method to calculate net cash flow from operating activities. Your net credit sales, accounts receivable, and allowance for doubtful accounts figures for yearend 2018, follow.Net credit sales is also useful for calculating a number of financial ratios. To find net credit sales, start with total sales on credit for a given period. The formula for net credit sales is = Sales on credit – Sales returns – Sales allowances. Take a couple of minutes and fill in the income statement and balance sheet columns. To calculate your accounts receivable turnover, you'll need to determine your net credit sales. To the City Council and Management: We have audited, in accordance with auditing standards generally accepted in the United States and the. Mortgage Sales Receivable.