The median wage is the median income of a group of people. To calculate this value, the incomes of the individuals in the group are sorted from low to high, and the middle value is taken as the Median wage.

Example
If the income of 10 people sorted from low to high is 7, 8, 8, 9, 10, 11, 12, 14, 15, 20 million VND, then the Median wage of that group will be 11 million VND.