for the month of january, an engine parts supplier company had the following financial information: merchandise inventory, january 1, $322,000, merchandise inventory january 31 $316,400, grooss purchases, $243,460, purchase returns and allowances $26,880 and frieght in $3,430 what are the goods available for sale ? what is the cost of goods for january ? if net sales were $389,450 what was the gross margin for january? if total operating expenses were $179,800 what was the net profit or loss?