Hey guys please be careful with the answers, I been getting the answers wrong? and please send the answer a little bit faster ?

Question 10 A pollster is hired to determine the percentage of voters favoring the Republican presidential nominee. A preliminary poll found that 122 out of 250 people preferred the Republican presidential nominee. If we require 99% confidence that the estimated value is within 0.5% of the true value, how many more people should we poll