18/80 = 22.5%
A value like 18/80, or 22.5%, can show up in everyday situations such as a survey, a test score, or a store discount. For example, if 18 out of 80 people choose a certain option, that group makes up 22.5% of the total.
To picture 22.5% quickly, think of it as a little less than one-quarter. Since one-quarter is 25%, 22.5% is just slightly below that, or about 2 people out of every 9.
A common mistake is to treat 22.5% as if it were 22.5 whole items, even when the total is not 100. The percentage describes a portion of the entire group, so the actual number of items depends on the total amount.
