The price of Ervin Corp. stock will either be $67 or $84 at the end of the year. Call options are available with one year until expiration. Continuously compounded T-bills currently yield 5.69 %. Suppose the current price of Ervin stock is $76. What is the value of the call option, using the risk-free approach, if the strike price is $55 per share? (Round answer to 2 decimal places. Do not round intermediate calculations).