MMario-
I hate to differ, but it's perfectly plausible--not just possible--to have a majority of people working for less than the average wage. All it takes is a small number of very highly-paid individuals in the mix. F'rinstance, If you have 100 employees making $10,000 per year and one employee making a million, the average income would be $19,802, and over 99% of the group would be earning below-average wages. Which is why the Median is a better measure in many cases than the Mode, or average.