Stock price,S=45 Exercise Price =50 Risk-free rat, X=2.5% Up parameter =1.15 Su= Cu= Down parameter =0.87 Sd= Cd= = Delta =.1389 Determine the call price? Stock price,S=45 Exercise Price =50 Risk-free rat, X=2.5% Up parameter =1.15 Su= Cu= Down parameter =0.87 Sd= Cd= = Delta =.1389 Determine the call price