The table below shows a student The table below shows a student\'s grades in a math class and the weight each has toward the final grade. Determine the student\'s final grade percentage. Solution The final grade percentage is 84.10% homework (.84 x 15) = 12.60% exam one (.82 x 20) = 16.40% exam two (.78 x 20) = 15.60% exam three (.90 x 20) = 18% Final exam (.86 x 25) = 21.50% Total = 84.10%.