Cost of goods sold is determined only at the end of the accounting period in
neither a perpetual nor a periodic inventory system . a perpetual inventory system . a periodic inventory system . both a perpetual and a periodic inventory system 2- Multiple Choice Question 92 A sales invoice is a source document that provides evidence of incurred operating expenses . provides evidence of credit sales . serves only as a customer receipt . provides support for goods purchased for resale . 3- Multiple Choice Question 149 Financial information is presented below : Operating Expenses $ 45,000 Sales Returns and Allowances 9,000 Sales Discounts 6,000 Sales Revenue 160,000 Cost of Goods Sold 87,000