65/650 = 10%
A value like 65/650, or 10%, can show up in everyday situations such as a store discount, a test score, or a survey result. For example, 10% of customers might choose one particular product, or a sale might take 10% off the original price.
You can picture 10% as one out of every ten equal parts. A quick estimate is to imagine a group of 100 items and notice that about 10 of them would fit into this amount.
A common mistake is thinking 10% means 10 items no matter how large the whole group is. The actual amount depends on the total, so 10% of 50 is different from 10% of 650.
