Financial information is presented here for Sheridan company. $63,840 ? Sales revenue Sales returns and allowances Net sales Cost of goods sold Gross profit Operating expenses Net income 57,000 36,480 ? 13,680 ? Compute the missing amounts. Sales revenue $63,840 Sales returns and allowances $ Net sales 57,000 36,480 Cost of goods sold Gross profit Operating expenses 13,680 Net income Net sales 57,000 36,480 Cost of goods sold Gross profit $ Operating expenses 13,680 Net income $ Calculate the profit margin and the gross profit rate for the company. Profit margin % Gross profit rate %