Various organizations, associations and government agencies report average wages in many professions. These statistics help understand the economy, help employers be competitive in retaining employees, and help job seekers negotiate their salary. Average salary, also called average salary, is calculated using all salary data. Average salary is calculated based on the respondents' declared salaries. According to the Bureau of Labor Statistics, the definition of average wages consists of adding wages in the sample and then dividing by the number of respondents. The result is the average salary of all respondents. Average wage data may be specific to one profession, industry, discipline, household, age, educational level, or other statistics. It is important to note that anomaly values ​​can skew the mean. When research organizations collect data to estimate average wages, it includes and excludes some information to more accurately calculate average wages. As an example: Bureau of Labor Statistics includes base wages, cost of living allowances, hazard pay, incentives such as sales commissions and production allowances, and tips. Typically, the included wage is the wage promised by the employer under the employment contract.