An interesting post by Paul Krugman discussing your subjective sense of where you are located in the income distribution. For example, rising inequality at the top (top 1%) in the past two decades has meant that people in the top 10% underestimate their true position in the income distribution.
Below I provide two examples of an income profile and their location in their income distribution, using a tool available on the Institute for Fiscal Studies website. A household living in the UK with 3,000 pounds a month, two children between 0 and 13, and a council tax of about 200 a month, would have a higher income than about 64% of the population. The red bar indicates the position of the relative position of the household:
But say you are a young professional living by yourself and earning 1,800 pounds a month and paying a council tax equal to 150 pounds a month. You then have an income higher than 75% of the population, about 44 million people.