Financial ratios are used to weigh and evaluate the operating performance of the firm. Gilliam Corporation has sales in the amount of $2,400.000, total assets in the amount of $1,100,000 of which current assets equal $560,000, current liabilities in the amount of $280,000, and net income equal $135,000. Determine the Gilliam Corporation's profit margin. (note: profit margin = net income/sales) ALSO FIND THE ROA (return on assets) AND CURRENT LIQUIDTY RATIO.