can tou help with the formula approach? thanks !

Ashley Corporation's lost free cash flow was 52 million. The free cash flow growth rate is expected to be constant at for 2 years after which free castows are expected to grow at a rate of 50% forever. The firm's weighted average cost of capital (WACC) is 100%. Ashley has 52 million in short term debt and 512 million in de and 1 million shares outstanding What is the best estimate of the intrinsic stock price (Please use the formula aproach to solve this