Stimac Corporation has total cash of $255,000, no marketable securities, total current receivables of $326,000, total inventory of $169,000, total prepaid expenses of $62,000, total current assets of $812,000, total current liabilities of $288,000, total stockholders equity of $1,914,000, total assets of $2,765,000, and total liabilities of $851,000. The companys acid-test (quick) ratio is closest to: