Assume a firm has a required minimum IRR on their investment if 25%. If they had purchased a company for 300 million, financed with 200 million in debt, and they assume they can exit the company at a 6x Exterprise Value to EBITDA multiple. Assume the company has paid down 125 million in debt over the past 5 years. What is the minimum EBITDA they would need five years from now to make their goal?