Shannon Corporation had profit of $250,000 and paid dividends to common shareholders of $50,000 in 2021. The weighted average number of shares issued in 2021 was 50,000 shares. Shannon Corporation's common shares are selling for $40 per share on the Toronto Stock Exchange. Shannon Corporation reported total assets of $930,000 and stockholders' equity of $520,000. What was Shannon Corporation's debt ratio for 2021?