Please show your work.

A stock is currently priced at $76 and will move up by a factor of 1.12 or down by a factor of 90 over the next period. The risk-free rate of interest is 2.1 percent. What is the value of a call option with a strike price of $77? (Do not round intermediate calculations. Round your answer to 2 decimal places. Omit the "$" sign in your response.) Value of the call option $