504/600 = 84%
A value like 504/600, or 84%, can show up in everyday life when 84 out of every 100 items meet a goal. For example, a student might answer 504 out of 600 questions correctly, or a store might sell 84% of its available tickets.
To picture 84% quickly, imagine a group of 100 squares with 84 shaded and 16 left blank. It is a little more than four-fifths, so you can estimate it as close to 80% while remembering that it is slightly higher.
A common mistake is to think 84% means 84 out of 84, but it actually means 84 out of 100. It is also easy to confuse 84% with 0.84 or 84/100 even though these all represent the same amount.
