The $2019$ financial statements for Growth Industries are presented below.

Sales and costs are projected to grow at $20\%$ a year for at least the next $4$ years. Both current assets and accounts payable are projected to rise in proportion to sales. The firm is currently operating at $75\%$ capacity, so it plans to increase fixed assets in proportion to sales. Interest expense will equal $10\%$ of long$-$term debt outstanding at the start of the year. The firm will maintain a dividend payout ratio of $0\mathrm{.}50.$

What is the required external financing over the next year?

Note: Enter excess cash as a negative number with a minus sign.

External financingM