First National Bank reports the following items on its balance sheet: cash, $200 million; U.S. government securities, $150 million; residential real estate loans, $300 million; and corporate loans, $350 million. Its off-balance-sheet items include standby credit letters, $20 million, and long-term credit commitments to corporations, $160 million. What are First National's total risk-weighted assets? If the bank reports Tier 1 capital of $30 million and Tier 2 capital of $20 million, does it have a capital deficiency?