##### Q-28. Under the initial set of assumptions, $ u = e^{\sigma\sqrt{\Delta t}} = e^{0.2840\sqrt{1}} = 1.32950 $ and $ d = 1 / 1.32950 = 0.75216 $, such that $ p = d = 0.50 $. If the dividend is included, then $ p = \frac{e^{(r-q)\Delta t} - d}{u - d} = 0.46427 $. Therefore, $ d = 1 - 0.46427 = 0.53573 $, and the increase is about 3.570%. | Financial Risk Manager Part 1 Quiz - LeetQuiz