Neptune Corporation has a present capital structure consisting of common stock (10 million shares) and debt ($150 million, 10% coupon rate). The company needs to raise $48 million and is undecided between two financing plans. Plan A: Equity financing. Under this plan, an additional amount of common stock will be sold at $10 per share. Plan B: Debt financing. Under this plan, the firm will issue 10% coupon bonds. At what level of operating income (EBIT) will the firm be indifferent between the two plans? Assume a 21% marginal tax rate.