Assume of the following information for Design Flaw Engineering, inc. Beta coefficient =1.50. Risk free rate = 6%, expected rate of return on market = 14%, plowback ratio = 60%, expected ROE (based upon beginning equity) = 20%. Estimate Design Flaw's leading earning multiple (I.e., Its P-E ratio)

The answer is 6.67x. I want to see the steps (Including formulas and substitute values)