2/40 = 5%
A value like 2/40, or 5%, can show up in everyday situations such as a store discount, a survey result, or a small amount of defective products in a shipment. For example, if 2 out of 40 students choose the same unusual answer, that group represents a small portion of the class.
To picture 5% quickly, imagine 5 shaded squares in a group of 100, or about 1 person out of every 20. It is small but still noticeable, especially when the total amount is large.
A common mistake is thinking that 5% means 5 out of 40 instead of 2 out of 40. People may also treat a 5% change as huge or insignificant without considering the starting amount.