You purchased 100 shares of common stock on margin at $180 per share. Assume the initial margin is 60%, and the maintenance margin is 35%. Below what stock price level would you get a margin call? Assume the stock pays no dividend; ignore interest on margin. Answers: A. $102.86

B. $128.57

C. $92.86

D. $110.77

E. $138.46

I keep getting 166.15 from 180*100 = 18000 (18000x.60 = 10800)

10800/(100(.35-1)) = 166.15

and it is saying it is incorrect.