In general, the average weekly wage is determined by adding up the previous 52 weeks of salary and dividing by 52. If your term of employment has been less than a year, but is still more than a few weeks, then you simply add up the total amount that you received during the entire period of your employment and divide by the total number of weeks that you worked. When you are adding up these weeks, be sure to include weeks in which you worked overtime, received additional commissions, or other benefits. Average weekly wage includes all of these things and is not limited to a standard 40 hour week. If, however, the period that you are using for your calculation includes some clearly unusual weeks in which you received no salary or very little, then you should not include those weeks in your calculations, since they will unfairly skew the average downward and not represent the true average weekly wage.