At the beginning of the year, a firm has current assets of $320 and current liabilities of $224. At the end of the year, the current assets are $477 and the current liabilities are $264. What is the change in net working capital

The common stock and debt of northern sludge are valued at $65 million and $35 million, respectively. investors currently require a return of 15.9% on the common stock and a return of 7.8% on the debt. if northern sludge issues an additional $14 million of common stock and uses this money to retire debt, what happens to the expected return on the stock? assume that the change in capital structure does not affect the interest rate on northern’s debt and that there are no taxes.