A call option has an exercise price of $$55$ and matures in $9$ months. The current stock price is $$63,$ and the risk$-$free rate is $4\mathrm{.}3$ percent per year, compounded continuously. What is the price of the call if the standard deviation of the stock is $0$ percent per year?

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

Call price