First, count the people who don't like choco ice cream dont like = whole - who like dont like = 25 - 5 dont like = 20 There are 20 people who dont like choco ice cream
Second, transform the number of people to percentage. percentage = number who dont like/whole percentage = 20/25
Percentage means per hundred, so we need to change the denominator to 100. To change the denominator, it should be multiplied by 4. The numerator also need to be multiplied by 4. percentage = 20/25 percentage = (20 × 4)/(25 × 4) percentage = 80/100 percentage = 80%
