Porto Corporation received $70,000 of dividend income from Seville, Incorporated. Porto owns 6 percent of the outstanding stock of Seville. Porto's marginal tax rate is 21 percent. Assume both companies are U.S. corporations. Required: Calculate Porto's allowable dividends-received deduction and its after-tax cash flow as a result of the dividend from Seville. How would your answers to requirement a change if Porto owned 55 percent of the stock of Seville? How would your answers to requirement a change if Porto owned 85 percent of the stock of Seville