Copper Corporation reports that the inventory turnover ratio = 3x (Sales/Inventory) while the industry average is 4. Copper wants to improve its ratio to 4 and they say they can do it without affecting sales, the profit margin, or other asset turnover ratios. Demand for their product is high and growing. They think that sales can grow 20% if they can get external funding. How much external funding will they need for an expected 20% growth rate? Please use the AFN formula.