Assets, costs, and current liabilities are proportional to sales. Long$-$term debt and equity are not. The company maintains a constant $40$ percent dividend payout ratio. As with every other firm in its industry, next year's sales are projected to increase by exactly $15\%.$ What is the external financing needed? $($Use cells A$6$ to D$17$ from the given information to complete this question.$)$

$21$ Output area:

$37$

Please show work$/$formulas$.$