Required: You observe a premium of $4.49 for a call option on Birdwell Enterprises common stock, which is currently selling for $50. The strike price on the call option is $51. The option has four months to maturity. The stock pays no dividends. The current risk-free interest rate is 4.5%. What is the implied volatility of the stock? (Do not round your intermediate calculations and round your final answer to the nearest whole percent.)
Implied volatility %
