264/660 = 40%
A value like 264/660, or 40%, can show up when 40 out of every 100 people choose the same option in a survey. It could also describe a sale, a test score, the amount of a task completed, or the portion of a budget spent.
You can picture 40% as four parts out of ten equal parts. It is a little less than half, so estimating it quickly means imagining half of the whole and then taking away a small amount.
A common mistake is thinking 40% means 40 percentage points or 40 items in every situation. The percent always describes a portion of the particular total being discussed, so 40% of 20 is much smaller than 40% of 1,000.
