Question: how to calculate 45 percent of a number?
Answer: Percentage(%) is a fraction with 100 in the denominators place. So, when you say 45% of a number, that means you are dividing the number into 100 small parts and taking 45 parts from them. Suppose, you want 45% of a number 'x' (say). That means you divide the number into 100 small parts.