The current stock price of Oracle is $34 and the stock does not pay dividends. The instantaneous riskfree rate of return is 5%. The instantaneous standard deviation of Oracle's stock is 60%. You wish to purchase a call option on this stock with an exercise price of $25 and an expiration date 73 days from now. Using the Black-Scholes Option Pricing Model, the call option should be worth __________ today.