River Cruises is all$-$equity$-$financed with $100,000$ shares. It now proposes to issue $$250,000$ of debt at an interest rate of $10\%$ and to use the proceeds to repurchase $25,000$ shares. Suppose that the corporate tax rate is $21\%.$ Calculate the dollar increase in the combined after$-$tax income of its debt$-$holders and equity$-$holders if profits before interest are:

Note: Do not round intermediate calculations.