On December 31, 2017, Johnson Inc. has total liabilities of $520,000 and total equity $446,000. The Company needs to raise additional funds through debt and equity. The Company will issue 1,000 shares of common stock at $9 per share and in addition it intends to borrow as much as it can Bank of Morganville. Bank of Morganville requires a maximum debt-to-asset ratio of 0.8.

What is the maximum additional amount that Johnson Inc. can borrow after the additional stock is issued?